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Help me i don’t know how to do this help me please

Help me i don’t know how to do this help me please-example-1
User Thegeko
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1 Answer

17 votes
17 votes
Answer is EG = 9 m.

Step by step

We know the two triangles are similar
We are looking for EG (x)

Line AB is similar to EF with ratio 100/90
Line AC is similar to EG with ratio 10/x

So if they are similar we can do our equation as 100/90 = 10/x

Cross multiply

100x = 900

Divide both sides by 100 to solve for x

100/100 x = 900/100

x = 9

My triangles in my attachment are not drawn to size but this is how I find which sides are similar for my equation

I hope this helps
Help me i don’t know how to do this help me please-example-1
User Sounak
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3.1k points