21. 1) Find the radius of the incircle of triangleABC,
AB = 7cm, BC = 24 cm and angle B = 90°
2) Find the shaded area. (Take π = 3.14)
The answer is 1. 3cm 2. 55.74cm2
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Answered by
5
Answer:
Given,
Radius (r) = 4.2 cm
We know that,
Circumference of a circle = 2πr
= 2 × (22/7) × 4.2 = 26.4 cm2
Area of a circle = πr
2
= (22/7) x 4.22
= 22 x 0.6 x 4.2 = 55.44 cm2
Answered by
14
Answer:
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