Question

Directions: Find the area of a circle with given radius. Round off your answer to the nearest hundredths.

1. r= 3.2 m

2. r = 17 mm

3. r = 36.5 mm

4. r = 83 cm

5. r = 5.8 m

A. Find the volume of the following:

Formula: V = e x e x e

6. e = 45.25 cm

7. e = 29 cm


Formula: V = L x W x H

8. l = 23 cm
w= 14 cm
h = 11 cm

9. l = 41 cm
w= 28 cm
h = 17 cm

10. l = 20 cm
w= 18 cm
h = 14 cm

Answer 1

Part A:

1. 32.17

2. 907.92

3. 4185.39

4. 21642.43

5. 105.68

Part B:

6. 92652.203125 or 92652.20

(not sure if you wanted rounded or exact number)

7. 24389

Part C:

8. 3542

9. 22848

10. 5040

Explanation:

Part A:

• To find the area of the circle, use the following formula:
• π × r²
• "r" is the radius of the circle, or the distance between the center and the edge of the circle.
• Example:
• Radius - 10
• π × r²
• π × 10²
• π × 100
• ≈314.16

Part B:

• To find the volume of a cube, multiply e × e × e
• Example:
• e = 5 cm
• e × e × e
• 5 × 5 × 5 = 125 cm³

Part C:

• To find the volume of a figure, multiply length × width × height

• Example:
• L = 5cm, W = 2cm, H = 6cm

• 5 × 2 × 6 = 60 cm³