Find the two similar sides which are already measured.
6 and 9 are those numbers.
Use similarity proportional ratio:
6/9 = z/15
Cross multiply:
9z = 15 × 6
9z = 90
z = 90 ÷ 9
z = 10
Answer from: Quest
the 4th choice is the correct one
step-by-step explanation:
Answer from: Quest
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