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how to find the shade area?
Date Posted: 5 years ago
Views: 451
Circumference of Circle with centre W = 2*3.142*10 = 62.84 cm
Angle of SWT = 7/62.84 * 360 = 40.1 degree
Angle QPV = 40.1 + 25 = 62.1 degree
Area SWT = 3.142 * 10*10 * 40.1/360 = 35cm2
Area QPW = 3.142 *8*8 * 62.1/360 = 34.7cm2
Shaded area + 63.88 = 35 + 34.7
Shaded Area = 5.82 cm2
Angle of SWT = 7/62.84 * 360 = 40.1 degree
Angle QPV = 40.1 + 25 = 62.1 degree
Area SWT = 3.142 * 10*10 * 40.1/360 = 35cm2
Area QPW = 3.142 *8*8 * 62.1/360 = 34.7cm2
Shaded area + 63.88 = 35 + 34.7
Shaded Area = 5.82 cm2
the answer is 7.742cm²
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