Answer:
Step-by-step explanation:
3/5 - 2/5 = (3-2)/5 = 1/5
7/10 - 3/10 = (7-3)/10 = 4/10 = 2/5
The answer is 15
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square root of 25
65.94 cm²
12.5/2 = 6.25 = radius of large circle
8.5/2 = 4.25 = radius of small circle
A= πr²
A of large circle = 3.14(6.25²) = 122.66
A of small circle = 3.14 (4.25²) = 56.72
122.66 - 56.72 = 65.94 cm²
