102k views
4 votes
Please help ………………………………

Please help ………………………………-example-1

1 Answer

4 votes

Answer:

4th option

Explanation:

given the triangles are similar , then the ratios of corresponding sides are in proportion.

corresponding sides are 9 and 6 , 12 and x - 4 , then


(9)/(6) =
(12)/(x-4) ← proportion equation ( cross- multiply )

9(x - 4) = 6 × 12 = 72 ( divide both sides by 9

x - 4 = 8 ( add 4 to both sides )

x = 12

User Ghtn
by
6.8k points