 SEMATHS.ORG Updated: 7 August 2021 07:15:00 PM

# Which equation can be used to find b in the triangle below??

The answer is tanB = 8/6, using SOH CAH TOA I use the angle we are trying to find to get an trig ratio. Using tan you should get 8/6 to find angle B.

## Consequently, what is the measure of angle B in the figure below 30 45 60 90?

Therefore, measure of angle BAC=Measure of angle CAD. Hence, the measure of angle BAC=45 degrees. Answer:B:45 degrees.

## In view of this, what is the measure of angle A in the triangle below?

On comparing both sides we have; therefore, the measure of angle A is 30 degree.

## In addition people ask how do you find the missing value of a triangle?

The Pythagorean theorem states that a2 + b2 = c2 in a right triangle where c is the longest side. You can use this equation to figure out the length of one side if you have the lengths of the other two. The figure shows two right triangles that are each missing one side's measure.

#### How do you find the longest side of an acute triangle?

To determine whether the triangle is acute, right, or obtuse, add the squares of the two smaller sides, and compare the sum to the square of the largest side. Since this sum is greater, the triangle is acute.

#### How do you find the opposite side of a triangle?

Boundless Algebra
1. The Pythagorean Theorem, a2+b2=c2, a 2 + b 2 = c 2 , can be used to find the length of any side of a right triangle.
2. The side opposite the right angle is called the hypotenuse (side c in the figure).
3. The Pythagorean Theorem, also known as Pythagoras' Theorem, is a fundamental relation in Euclidean geometry.
4. a2+b2=c2.

#### What are the 3 sides of a triangle called?

In a right triangle, the hypotenuse is the longest side, an "opposite" side is the one across from a given angle, and an "adjacent" side is next to a given angle. We use special words to describe the sides of right triangles.

#### Are 2 sides equal in a right triangle?

A right triangle has one angle equal to 90 degrees. A right triangle can also be an isosceles triangle--which means that it has two sides that are equal. A right isosceles triangle has a 90-degree angle and two 45-degree angles.

#### How do you know if it is a right triangle?

A right triangle is a triangle in which one of the angles is a 90∘ angle. The "square" at the vertex of the angle indicates that it is 90 degrees. A triangle can be determined to be a right triangle if the side lengths are known. If the lengths satisfy the Pythagorean Theorem (a2+b2=c2) then it is a right triangle.

#### How do you find the length of a triangle given two sides and an angle?

Solving SAS Triangles
1. use The Law of Cosines to calculate the unknown side,
2. then use The Law of Sines to find the smaller of the other two angles,
3. and then use the three angles add to 180° to find the last angle.

#### What is the shortest side of a right triangle?

In any triangle, the longest side is opposite the largest angle, and the shortest side is opposite the smallest angle. Thus, in a right triangle, the hypotenuse is always the longest side.

#### Can you use Pythagorean Theorem on any triangle?

The Pythagorean Theorem states that in any right triangle, the sum of the squares of the lengths of the triangle's legs is the same as the square of the length of the triangle's hypotenuse. Remember, this theorem only works for right triangles.

#### What is the rule for side lengths of a triangle?

Triangle Inequality Theorem. The sum of the lengths of any two sides of a triangle is greater than the length of the third side.

#### How do you find the third side of an obtuse triangle?

You can use the pythagorean theorem to see where the angle between the first two sides would be 90 degrees. Third side = sqrt(16^2 + 21^2) = 26.4.

#### What does the letter C stand for in the formula a2 b2 c2?

a c Pythagorean Theorem: a2 + b2 = c2. b. NOTE: The side “c” is always the side opposite the right angle. Side “c” is called the hypotenuse.

#### What is the longest side of a triangle called?

We define the side of the triangle opposite from the right angle to be the hypotenuse, h. It is the longest side of the three sides of the right triangle. The word "hypotenuse" comes from two Greek words meaning "to stretch", since this is the longest side.

#### How do you know if a triangle is obtuse by side lengths?

Use the Three Side Lengths to Find Out
On the other hand, if a squared plus b squared is less than c squared, the triangle will have an obtuse angle and be obtuse. For example, if you have a triangle with side lengths of 4, 10, and 15, you can plug these lengths into the equation.

#### What are the sides of an acute triangle?

Properties of Acute Triangles
An equilateral triangle has three sides of equal length and three equal angles of 60°. An acute triangle has three inscribed squares. Each square coincides with a part of a triangle side. The other two vertices of a square are on the two remaining sides of the acute triangle.

#### How do you find the missing side of an acute triangle?

The law of cosines states that for any side of a triangle b, b2 = a2 + c2 -2*a*c*cos(angle B). For any triangle there are three equations like this one, which give a formula to compute each side of a triangle based on the other two sides and the included angle.

#### How do you find the third side of a triangle given two sides?

Using the Law of Cosines to Find the Third Side
1. Identify angle C. It is the angle whose measure you know.
2. Identify a and b as the sides that are not across from angle C.
3. Substitute the values into the Law of Cosines.
4. Solve the equation for the missing side.

#### Does 5/12/13 make a right triangle?

Yes, a right triangle can have side lengths 5, 12, and 13. To determine if sides of length 5, 12, and 13 units can make up the sides of a right

#### What side is C on a triangle?

The sides of a right triangle have different names: The longest side, opposite the right angle, is called the hypotenuse. In the diagram, the hypotenuse is labeled c. The other two sides are called the legs of the triangle.

#### How can the Pythagorean theorem be used to help classify triangles?

Classifying Triangles by Using the Pythagorean Theorem
We can use the Pythagorean Theorem to help determine if a triangle is a right triangle, if it is acute, or if it is obtuse. Therefore, if a2+b2>c2, then lengths a, b, and c make up an acute triangle.

#### How do I find the third side of a triangle?

To find the perimeter, or distance around, our triangle we simply need to add all three sides together. If we only know two of the sides we need to use the Pythagorean Theorem first to find the third side.

#### Is Side A always longer than Side B in a right triangle?

2 Answers. Side A and B does not matter when your trying to apply this to the pythagorean theorem but side C must always be the hypotenuse. The hypotenuse is always the triangle's longest side. It is opposite the right angle.

#### How do you find the longest side of an obtuse triangle?

Using the Pythagorean Theorem to identify obtuse triangles
For any triangle, if a2 + b2 < c2, where c is the longest side, the triangle is an obtuse triangle.

#### What are the side lengths of a 45 45 90 Triangle?

A 45°-45°-90° triangle is a special right triangle that has two 45-degree angles and one 90-degree angle. The side lengths of this triangle are in the ratio of; Side 1: Side 2: Hypotenuse = n: n: n√2 = 1:1: √2. The 45°-45°-90° right triangle is half of a square.