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How should I work out this question?

How should I work out this question?-example-1
User Choofie
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1 Answer

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I would start by using the Pythagorean theorem to find the length of side AD first.

Since side AD is the longest side, it is going to be C squared in the equation.

Your equation should look like this:
( 25^2 )+( 18^2 )=( C^2 )

625+324= C^2

949= C^2

C is approximately 30.8 which means side AD is approximately 30.8cm long.

Next subtract the length of AE from AD to find ED.

30.8-26= 4.8 cm

ED= 4.8 cm

Now we are going to use the Pythagorean theorem again to find the length of BE.

Your equation should look like this:
( 20^2 )+( B^2 )= ( 26^2 )

400+( B^2 )= 676

B^2=279

B is approximately 16.7 meaning ED is 16.7 cm long

ED=4.8cm
BE=16.7cm
User Elkarel
by
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