Similar triangles what the answer
2 answers:
Answer:
x=8
Step-by-step explanation:
Answer:
x = 8
Step-by-step explanation:
Since the triangles are similar then the ratios of corresponding sides are equal, that is
= 
=
( cross- multiply )
(2x + 4)(x + 10) = (x + 7)(2x + 8) ← expand factors on both sides
2x² + 24x + 40 = 2x² + 22x + 56 ( subtract 2x² from both sides )
24x + 40 = 22x + 56 ( subtract 22x from both sides )
2x + 40 = 56 ( subtract 40 from both sides )
2x = 16 ( divide both sides by 2)
x = 8
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