3 years ago

The triangles are similar by the AA Similarity Postulate. Find the value of X.

Mathematics

1 answer:

julsineya [31]3 years ago

4 0

Answer:

Step-by-step explanation:

If the triangle are similar, then the sides are in proportion:

$\dfrac{x}{18}=\dfrac{15}{15+7.5}$

$\dfrac{x}{18}=\dfrac{15}{22.5}$ cross multiply

$22.5x=(18)(15)$

$22.5x=270$ divide both sides by 22.5

$x=12$

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