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Shahira
Shahira

Primary 5 chevron_right Maths chevron_right Area & Volume chevron_right Malaysia

how to find the shade area?

Date Posted: 10 months ago
Views: 78
Roland Sim
Roland Sim
10 months ago
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
Shahira
Shahira
10 months ago
the answer is 7.742cm²