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Someone please help me!!! I’m stuck and need help!

Someone please help me!!! I’m stuck and need help!-example-1
User Jhondge
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1 Answer

4 votes

Answer:

12

Explanation:

These triangles are similar using the AA theroem. This means there sides are in corresponding proportion.

Side AR and Side TE are corresponding. Use this proportion.


(6)/(8)

This side the triangle SAR side lengths are 3/4 of side lengths of triangle SET.

We know that RS+ST=21

And that RS=3/4(ST).


(3)/(4) x + x = 21


1.75x = 21

x=12.

Side ST is 12

User Gonzalingui
by
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