How to solve for the letter y

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asked May 23, 2017 197k views

1 Answer

Vanzylv · Answer 1 · 2017-05-28T17:33:12+0000

ratio and proprtion

if the leftmost side is z
we know that 2 triangles that are congruent have sides in same ratio

so

x:8:9=z:9:y

8:9=9:y
8/9=9/y
times 9y both sides
8y=81
y=10 and 1/8

How to solve for the letter y

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