arc length and area of sector

What does "circumference" mean?

• Space a circle takes up
• Distance around a circle
• Line from one side of a circle to another
• Line from center of circle to side

Tags

CCSS.HSG.GMD.A.1

CCSS.HSG.CO.A.1

What is the exact area of this circle?

Recall: $A=\pi r^2$  and  $C=2\pi r$  

• 1444π cm²

• 361π cm²

• 38π cm²

• 76π cm²

Tags

CCSS.HSG.GMD.A.1

FIND THE ARC LENGTH OF THE BOLDED ARC

• A
• B
• C
• D

Tags

CCSS.HSG.C.B.5

CCSS.HSF.TF.A.1

Find the arc length.  Leave your answer in terms of π.

• 7/4π
• 7/2π
• 1/8π
• 45π

Tags

CCSS.HSG.C.B.5

CCSS.HSF.TF.A.1

Solve for the arclength of the shaded region.

• 20.82π

• 20.88π

• 20.87π

• 21.87π

Tags

CCSS.HSG.C.B.5

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

• 176.7cm²

• 23.6cm²

• 156.7cm²

• 88.4cm²

Tags

CCSS.HSG.C.B.5

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

• 67.1cm²

• 67.0cm²

• 16.8cm²

• 134.0cm²

Tags

CCSS.HSG.C.B.5

CCSS.HSG.GMD.A.1

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

• 56.5cm²

• 56.6cm²

• 226.1cm²

• 226.2cm²

Tags

CCSS.HSG.C.B.5

CCSS.HSG.GMD.A.1

If the degree of the sector is 45°, the area of the sector is 10 in², what is the area of the circle?

• 80 in²

• 28in²

• 145.3 in2

• 19.6 in²

Tags

CCSS.HSG.C.B.5

Find the arc length. Leave your answer in terms of  $\pi$  .

•  $\frac{7}{4}\pi\ cm$  

•  $\frac{7}{2}\pi\ cm$  

•  $\frac{1}{8}\pi\ cm$  

•  $45\pi\ cm$  

•  $14\pi\ cm$  

Tags

CCSS.HSG.C.B.5

CCSS.HSF.TF.A.1

CCSS.HSG.C.A.2