The diameter of the larger circle is 20.4 cm. The diameter of the smaller circle is 10.8 cm.
What is the best approximation for the area of the shaded region?
Use 3.14 to approximate pi.
72.3 cm²
235.1 cm²
289.4 cm²
326.7 cm²
Guyz37:
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Answered by
3
Diameter of large circle = 20,4 cm
Radius of large circle =10.2 cm
Area of the large circle [A] =pi R² =3.14 × 10.2 ² cm²
Diameter of small circle =10.8 cm
Radius of small circle =5.4 cm.
Area of small circle [a] = pi r² =3.14 × 5.4² cm²
So area of the shaded region = A - a
____________ = 3.14 × 10.2² - 3.14× 5.4² cm²
_____________ = 3.14(10.2² - 5.4²) cm² _____________ =3.14 × 74.88 cm²
_____________ = 235.1 cm² ___(answer) __
Hope this is ur required answer.
Radius of large circle =10.2 cm
Area of the large circle [A] =pi R² =3.14 × 10.2 ² cm²
Diameter of small circle =10.8 cm
Radius of small circle =5.4 cm.
Area of small circle [a] = pi r² =3.14 × 5.4² cm²
So area of the shaded region = A - a
____________ = 3.14 × 10.2² - 3.14× 5.4² cm²
_____________ = 3.14(10.2² - 5.4²) cm² _____________ =3.14 × 74.88 cm²
_____________ = 235.1 cm² ___(answer) __
Hope this is ur required answer.
Yes it is thank you for showing your work now i know this is correct thank you!!!!!!!
welcome..
Answered by
1
Answer:235.1 cm
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