please help me to solve this
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49 sq cm
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Answered by
1
Answer:
Area of the shaded region = Area of the big circle- Area of the small circle
Diameter of big circle = 7+7+7 =21
radius = 21÷2 = 10.5
Area A1 = 3.14 × 10.5 × 10.5 = 346.185 cm^2
Diameter of the small circle = 7
radius = 7÷2 =3.5
Area A2 = 3.14 ×3.5×3.5 = 38.465
Area of the shaded region = A1 - A2
= 346.185 - 38.465 = 307.720cm^2
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