Question

6. In the figure shown, Prove that area (a) = area (b).
Find b if OB = 14 cm.
OAB is a quadrant of circle with O as centre and OA as
radius.
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Answer 1

Answer:

• we add all the sub areas and equate with area of AOB and we prove Area a equals Area b.
• Because of overlapping the area b was taken twice so we had to eliminate the extra b.