Arcs and Sectors

Arcs and Sectors

Multiple Choice

Find the circumference (to the nearest whole number)

• 88 in
• 44 in
• 116 square in
• None of the above

Multiple Choice

Find the area of the circle below.

• 100 cm²
• 225 cm²
• 9 cm²
• 28.26 cm²

Multiple Choice

What is the circumference of this circle ?

• 3.14 cm 
• 37.68 cm
• 24 cm
• 68.4 cm

Multiple Choice

Find the area of the circle

• 43.96
• 153.86 
• 87.82
• 307.72

Multiple Select

Which of the following is the formula for the CIRCUMFERENCE of a circle? (Select all that apply)

•  $2\pi r$  

•  $\pi d$  

•  $2\pi r^2$  

•  $\pi r^2$  

Multiple Choice

Name the pictured part of the circle.

• Radius

• Central Angle

• Sector

• Center

• Arc

Multiple Choice

Which of the following is the formula for the AREA of a circle?

•  $2\pi r$  

•  $\pi d$  

•  $2\pi r^2$  

•  $\pi r^2$  

Multiple Choice

Name the pictured part of the circle.

• Diameter

• Sector

• Radius

• Central Angle

• Arc

Multiple Choice

Name the pictured part of the circle.

• Radius

• Central Angle

• Sector

• Center

• Arc

Multiple Choice

what is the area of this semicircle ?
d = 8 cm 

• 100.48 cm²
• 80 cm²
• 200.96 cm²
• 25.12 cm²

Multiple Choice

Find the area of the quarter circle. Round you answer to the nearest hundredth.

• 58.88

• 78.50

• 7.85

• 157.00

Multiple Choice

Mrs. Wilson placed the welcome mat shown below on her front door step. What is the area of her welcome mat in square feet? Leave in terms of π.

• A = 2π
• A = 8π
• A = 10π
• A = 4π

Multiple Choice

What is the area of the shaded region? Round to the nearest hundredth.

• 8π/3

• 2π/3

• 32π/3

• 4π/3

Multiple Choice

Find the area of the sector with a radius of 3m and measure of 150 degrees.

• 4248 m²

• 7.9 m²

• 2827.4 m²

• 11.8 m²

Multiple Choice

Find the length of the arc.

• 31.42cm

• 15.71cm

• 282.74cm

• 23.56cm

Multiple Choice

Find the area of the sector, rounding your answer to 1d.p.

• 2.1cm²

• 2.0cm²

• 0.5cm²

• 12.6cm²

Multiple Choice

Find the area of the sector, rounding your answer to 1d.p.

• 8.9cm²

• 9.0cm²

• 11.4cm²

• 11.3cm²

Multiple Choice

Find the area of the sector, rounding your answer to 1d.p.

(Next video looks at Arc lengths)

• 15.4m²

• 15.3m²

• 15.5m²

• 15.6cm²

Multiple Choice

Find the length of the arc to 2dp

(remember arc means we need to find the circumference first!)

• 9.42cm

• 150.80cm

• 4.71cm

• 18.85cm

Multiple Choice

Find the length of the arc to 2dp

(Circumference not Area)

• 1.95cm

• 3.91cm

• 0.98cm

• 2.93cm

Multiple Choice

Find the length of the arc to 2dp

• 25.12cm

• 12.57cm

• 628.32cm

• 31.42cm

Multiple Choice

Find the length of the arc to 2dp

• 31.42cm

• 15.71cm

• 282.74cm

• 23.56cm

Multiple Choice

Calculate the length of the bold arc.

• 49.7 ft

• 15.8 ft

• 24.9 ft

• 3.14 ft

Multiple Choice

Find the perimeter of this figure

• 15.7in

• 55.7in

• 30.7in

• 40.7in

Multiple Choice

Find the perimeter of this shape

• 
   $3\pi+6\ inch$ 

•   $9\pi\ inch$ 

•  $12\ inch$  

•  $6\ inch$  

Multiple Choice

Find the length of the arc to 2dp

• 5.76cm

• 18.85cm

• 7.33cm

• 11.52cm

Multiple Choice

Find the length of the arc to 2dp

• 21.99mm

• 65.97mm

• 32.99mm

• 11.00mm

Multiple Choice

Find the length of the arc to 2dp

• 246.09cm

• 24.61cm

• 123.05cm

• 240.86cm

Multiple Choice

Find the length of the arc to 2dp

• 32.11cm

• 16.05cm

• 780.84cm

• 32.99cm

Multiple Choice

Find the length of the arc to 2dp

• 49.74cm

• 24.87cm

• 4.97cm

• 24.9cm

Multiple Choice

Find the length of the arc to 2dp

• 1.95cm

• 3.91cm

• 0.98cm

• 2.93cm

Multiple Choice

What is the circumference of this circle with a diameter of 12cm?

• 3.14 cm

• 37.7 cm

• 24 cm

• 68.4 cm