Mensurationhard · Past Paper
What is the area of a segment of a circle of radius 10 cm, if the chord subtends a right angle at the center? (pi=3.14)
A28.5 sq. cm
B78.5 sq. cm
C50 sq. cm
D31.4 sq. cm
✓ Correct Answer: A — 28.5 sq. cm
Area of segment = Area of sector - Area of triangle = (90/360)*3.14*100 - 0.5*10*10 = 78.5 - 50 = 28.5 sq. cm.
Share this question
More from Mensuration
- A hemispherical depression is cut out from one face of a cubical wooden block such that the diameter d of the hemisphere is equal to the edge of the cube. Find the volume of the remaining solid.
- A well with 14 m inside diameter is dug 10 m deep. Find the inner curved surface area.
- Area of a rectangle with length 'x' and breadth 'y' is:
- What is the ratio of the area of a circle to the area of its circumscribed square?
- A spherical ball of radius 3 cm is melted and recast into three spherical balls. The radii of two of the balls are 1.5 cm and 2 cm. Find the radius of the third ball.