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Any help?? I’ve tried this for a hour and couldn’t figure anything out

Any help?? I’ve tried this for a hour and couldn’t figure anything out-example-1
User Ian Kent
by
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1 Answer

4 votes

Answer:

3. PR=51

4. FE=28

Explanation:

3. since the two triangles are similar, set up a proportion:

x+8/3x-9=24/28

*cross multiply*:

28(x+8)=24(3x-9)

28x+224=72x-216

44x=440

x=20

to find PR:

PR=3x-9

PR=3(20)-9

PR=51

4. same here:

39/4x+2=42/5x-2

39(5x-2)=42(4x+2)

195x-78=168x+84

27x=162

x=6

to find FE:

FE=5x-2

FE=5(6)-2

FE=28

User Roman Kotov
by
8.4k points

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