The shorter leg of a 30°-60°-90° right triangle measures 5 in. What is the length of the longer leg?

A. 5 SQUARE ROOT OF 3 inches

B. 10 inches

C. 5 square root of 2 inches

D. 15 in

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The relationship of the angles to the sides opposite those angles is always:

30°=1, 60°=√3, and 90°=2

So the longer leg can be found using the ratios from above...

L/S=√3/1 and we are told that the shorter side is 5 in so

L/5=√3

L=5√3

So A. is the correct answer.


The length of the longer leg is 5√3 inches if the shorter leg of a 30°-60°-90° right triangle measures 5 in option (A) is correct.

What is a right-angle triangle?

It is a triangle in which one of the angles is 90 degrees and the other two are sharp angles. The sides of a right-angled triangle are known as the hypotenuse, perpendicular, and base.

We have:

The shorter leg of a 30°-60°-90° right triangle measures 5 in.

In the 30°-60°-90°, the sides of the right triangle are in the ratios of:

1:√3:2

Let L be the longer leg and S be the shorter leg:

Then the ratios of:

[tex]\rm \dfrac{L}{5} =\dfrac{\sqrt{3}}{1}[/tex]

L = 5√3 inches

Thus, the length of the longer leg is 5√3 if the shorter leg of a 30°-60°-90° right triangle measures 5 in option (A) is correct.

Learn more about the right angle triangle here:

brainly.com/question/3770177

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