Chapter 3: Geometry

r = 5 cm, calculate the circumference of the circle

• 31.02 cm

• 32.40 cm

• 31.42 cm

• 31.50 cm

If r = 4 cm, find the volume of the sphere

• 628.08 cm³

• 286.08 cm³

• 862.08 cm³

• 268.08 cm³

If the area of circle is 80 cm² , find the radius of the circle

• 5.05 cm

• 25.46 cm

• 5.50 cm

• 5.55 cm

Given r = 5 cm, find the area of surface of the sphere

• 413.61 cm²

• 314.16 cm²

• 62.83 cm²

• 134.61 cm²

Given the diameter of the circle is 20 cm, find the area of the circle

• 62.83 cm²

• 1256.64 cm²

• 125.66 cm²

• 314.16 cm²