Question

If the area of the shaded portion is 56 sq. cms & the area of A OMN is 98 sq.
cms then the area of unshaded portion of the triangle is....
N
1)
2)
M
650 sq. cms
560 sq. cms
600 sq. cms
500 sq. cms
3)
4)​

Answer 1

Answer :-

Let radius of circle is r cm .

so,

→ Area of ∆ = (1/2) * OM * ON * sin 90°

→ 98 = (1/2) * r * r

→ r² = 196

→ r = 14 cm .

then,

→ Area of circle = πr² = (22/7) * 14 * 14 = 44 * 14 = 616 cm² .

therefore,

→ Unshaded area = 616 - 56 = 560 cm² (3) (Ans.)

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