Understanding and applying theorems and properties about circles

What is the area of the shaded region? Leave your answer as an exact value.

• 25π - 50

• 25π - 100

• 5π - 50

• 5π - 100

Tags

CCSS.HSG.C.B.5

Find the area of the sector. Round to the nearest tenth.

(a)  

Tags

CCSS.HSG.C.B.5

What is area of the dark blue sector shown at the left.  The radius of the circle is 4 units and the length of the arc (the curved edge of the sector) measures 7.85 units.  Express the answer to the nearest tenth of a square unit.

• 0.3 square units

• 15.7 square units

• 19.7 square units

• 50.3 square units

Tags

CCSS.HSG.C.B.5

What is the area of a sector of a circle whose radius is 14 cm and has a central angle of $135\degree$ ? 

•  $\frac{147\pi}{2}\ cm^2$  

•  $\frac{21\pi}{4}\ cm^2$  

•  $\frac{21\pi}{2}\ cm^2$  

•  $\frac{147\pi}{4}\ cm^2$  

Tags

CCSS.HSG.C.B.5

Given that the radius is 10 in, what is the sector area of CFD?

• 59.311 in²

• 18.889 in²

• 62.135 in²

• 5.931 in²

Tags

CCSS.HSG.C.B.5

Find the area of each shaded sector. Use  $\pi$  key to calculate. Round to the nearest hundredths.

(a)  

Tags

CCSS.HSG.C.B.5

Find the area of the sector, rounding your answer to the nearest tenth.

• 8.9cm²

• 9.0cm²

• 11.4cm²

• 11.3cm²

Tags

CCSS.HSG.C.B.5

Find the area of the shaded sector of circle O.  The radius is 6 inches and the central angle is 100°.  Express answer to the nearest tenth of a square inch.

• 9.2 sq. in.
• 10.5 sq. in.
• 31.4 sq. in.
• 38.2 sq. in.

Tags

CCSS.HSG.C.B.5

Find the sector area of the blue piece.

• 10.598 m²

• 2.355 m²

• 4.710 m²

• 7.684 m²

Tags

CCSS.HSG.C.B.5

Find the area of the shaded sector. Round to the nearest hundredth.

(a)  

Tags

CCSS.HSG.C.B.5