circles-area/circumference/area of sector review

What is Circumference?

• π
• The distance around the outside of a circle
• The amount of space on the inside of a circle

Tags

CCSS.HSG.CO.A.1

CCSS.HSG.GMD.A.1

What is the formula for CIRCUMFERENCE of a circle? (there may be multiple answers)

• C=πd

• C=πd²

• A=πr²

• C=2πr

What is the formula for area of a circle?

• C=πd
• C=πd²
• A=πr²
• A= C/d

Tags

CCSS.7.G.B.4

What is the area of this circle?

• 25π

• 10π

• π

• 5π

Tags

CCSS.7.G.B.4

What is the area of this circle?

• 12π

• 6π

• 144π

• 36π

Tags

CCSS.7.G.B.4

Find the area of the sector, rounding your answer to the nearest 10th

• 176.7cm²

• 23.6cm²

• 156.7cm²

• 88.4cm²

Find the area of the sector, rounding your answer to the nearest 10th

• 67.1cm²

• 67.0cm²

• 16.8cm²

• 134.0cm²

Find the area of the sector, rounding your answer to the nearest 10th

• 2.1cm²

• 2.0cm²

• 0.5cm²

• 12.6cm²

Find the area of the sector, rounding your answer to the nearest 10th

• 15.4m²

• 15.3m²

• 15.5m²

• 15.6cm²

Find the area of the sector, rounding your answer to the nearest 10th

• 748.3cm²

• 769.6cm²

• 769.7cm²

• 759.0cm²