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CBSE Class 10- Mathematics: Chapter β 12 Areas Related to Circles Part 27
Question 6:
A round table cover has six equal designs as shown in figure. If the radius of the cover is , find the cost of making the designs at the rate of Ts. per .
Answer:
Area of minor sector
For, area of ,
Draw .
In right triangles OMA and OMB,
[Radii of same circle]
[Common]
[RHS congruency]
In right angled triangle OMA,
Also,
Area of
Area of minor segment = Area of minor sector β Area of
Area of one design
Area of six designs
Cost of making designs