A circle with a radius of 5 cm has an area of 25π cm2. Which is the best approximation for the area of one-half of this circle?
A. 39.3 cm2 B. 8.9 cm2 C. 19.6 cm2 D. 12.5 cm2
1 answer:
Answer:
A
Step-by-step explanation:
π=3.14159...
Full circle are 25π cm² = 25*3.14=78.5 cm²
Half 78.5 cm²/2 = 39.25 cm²
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