Circles Review

The diagram shows a circle with radius 8cm. Find the area of this circle, correct to 1 decimal place.

• 201.1cm²

• 50.3cm²

• 804.2cm²

• 25.1cm²

The diagram shows a circle with radius 8cm. Find the circumference of this circle, correct to 1 decimal place.

• 201.1cm

• 50.3cm

• 804.2cm

• 25.1cm

The diagram shows a circle with diamater 16cm. Find the area of this circle, correct to 1 decimal place.

• 201.1cm²

• 50.3cm²

• 804.2cm²

• 25.1cm²

The diagram shows a circle with diameter 16cm. Find the circumference of this circle, correct to 1 decimal place.

• 201.1cm

• 50.3cm

• 804.2cm

• 25.1cm

Find the red minor arc and its measure. Then find the blue major arc and its measure.

• AB, 135; ADB, 225

• ADB, 225; AB, 135

Find the red minor act and its measure. Then find the blue major arc and its measure.

• MN, 170; MPN 190

• MPN 190, MN 170

Find the red minor arc and its measure. Then find the blue major arc and its measure.

• EGF, 292; EF, 68

• EF, 68; EGF 292

Find the length of the bold arc.

• 17869.4 ft

• 49.7 ft

• 472.5 ft

• 54,150 ft

Find the arc length of arc AB.

• 12.57 units
• 75.40 units
• 24 units
• 125.66 units

Find the arc length.

• 37.70 cm
• 6.28 cm
• 28.27 cm
• 9.42 cm