allerySimilar triangles' sides are 2:3; their areas differ by 25 cm². Smaller area?
A20 cm²
B15 cm²
C25 cm²
D10 cm²
Answer & Solution
Correct answer: A. 20 cm²
The area ratio is 4:9, so the five-part difference of 25 gives smaller area 4×5=20 cm².
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