Circles, Semi Circles and Quarter Circles

Find m∠PRQ.

• 39°

• 90°

• 51°

• 15°

Tags

CCSS.HSG.C.A.2

Identify the region of PAQ

• radius

• minor arc

• minor sector

• minor segment

What is the circumference of a circle with a diameter of 10cm?

• 31.4cm

• 31.4m

• 314cm

• 314cm²

Tags

CCSS.7.G.B.4

What is the circumference of a circle with a radius of 4cm?

• 12.56cm

• 25.12cm

• 50.24cm

• 6.28cm

Tags

CCSS.7.G.B.4

What is the area of a circle with a diameter of 20m?

• 1256m²

• 125.6m²

• 62.8m²

• 314m²

Tags

CCSS.7.G.B.4

To find the area of a semi-circle you would find the area of the whole circle and then ___________.

Tags

CCSS.7.G.B.4

The diameter is _____ the size of the radius.

Tags

CCSS.HSG.C.A.2

For which of these shapes would you use the equation above to find the area? (You can select multiple answers)

• Circle

• Trapesium

• Rhombus

• Semi-circle

• Quarter-circle

Tags

CCSS.6.G.A.1