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.
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