Area Related to Circles

What is the area of sector of a circle with central angle  $60\degree$  

•  $\pi r^2$  

•  $2\pi r$  

•  $\frac{\pi r^2}{6}$  

•  $\frac{\pi r^2}{2}$  

Tags

CCSS.HSG.C.B.5

Say 'TRUE' or 'FALSE'
If areas of two circles are equal, then their circumferences are also equal

• TRUE
• FALSE

Say 'TRUE' or 'FALSE'
The distance traveled by a circular wheel of diameter d cm in one revolution is 2πd cm

• TRUE
• FALSE

The region bounded by two radii and corresponding arc of a circle is

• A) Segment

• B) Sector

• C) Area

• D) Perimeter

The region bounded by chord and corresponding arc of a circle is

• A) Perimeter

• B) Sector

• C) Area

• D) Segment

Angle of the sector is 90°then the ratio of Area of circle to area of sector is

• A) 1:4

• B) 1:2

• C) 4:1

• D) 2:3

Tags

CCSS.HSG.C.B.5

Area of circle is 154cm², and Area of minor sector is 7.7cm², then calculate area of major sector of circle.

• A) 145 cm²

• B) 146.3 cm²

• C) 77 cm²

• D) 147 cm²

Tags

CCSS.HSG.C.B.5

Area of the square that can be inscribed in circle of radius 8 cm

• 256 sq.cm

• 128 sq.cm

• 64 sq.cm

• 132 sq.cm

The perimeter of square circumscribing circle of radius 'a' cm is

• 8a cm

• 6a cm

• 10a cm

• 16a cm

Tags

CCSS.3.MD.D.8

The area of a segment of a circle is less than the area of its corresponding sector

• True only for minor segment

• True only for major segment

• Alwys false