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2 years ago

15

A circle has a diameter of 10 cm. What is the best approximation of its area? Use 3.14 for pi.....you need radius not diameter i

n the formula! (Hint: A = π r2 )
78.5 sq cm

314 sq cm

31.4 sq cm

15.7 sq cm

2 answers:

makvit [3.9K]2 years ago

8 0

Answer:

If it has a diameter of 10, divide it by 2 to get Radius (5) because Area = πr²

Then you do r * π *r which would be 78.5. so C is your answer.

Step-by-step explanation:

valina [46]2 years ago

6 0

This 15.7 is the correct answer

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$m = \frac{y_2 - y_1}{x_2 - x_1}$

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For CD:

$C(x_1,y_1) = (1, 1)$

$D(x_2,y_2) = (-2, 13)$

So:

$m = \frac{y_2 - y_1}{x_2 - x_1}$

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