Question

10. Find the circumference of the circle. Use 3.14 for pi. Round to the nearest unit.

53 cm
227 cm
20 cm
27 cm
and
9. Find the area of the parallelogram with a base of 471.5 cm and height of 21.3 cm.
492.8 cm2
10,042.95 cm2
20,085.9 cm2
985.6 cm2
ty

Answer 1

Explanation:

To find the circumference of a circle, we use the formula:

Circumference = 2 * π * radius

Let's calculate the circumferences for the given options

1. Circumference = 2 * 3.14 * 53 ≈ 333.64 cm

2. Circumference = 2 * 3.14 * 227 ≈ 1428.28 cm

3. Circumference = 2 * 3.14 * 20 ≈ 125.6 cm

4. Circumference = 2 * 3.14 * 27 ≈ 169.56 cm

now, rounding each value to the nearest unit , we get

1. Circumference ≈ 334 cm

2. Circumference ≈ 1428 cm

3. Circumference ≈ 126 cm

4. Circumference ≈ 170 cm