Shawn's answer to Santhosh's Primary 5 Maths Angles & Geometry Singapore question.
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Area of QRT = 1/2 x 40 x 30
= 600
Perimeter = 30 + 40 + 50 + QP + RS
176 = 120 + QP + RS
Since QP = RS (rectangle),
56 / 2 = 28
Area of rectangle = 50 x 28
= 1400
= 600
Perimeter = 30 + 40 + 50 + QP + RS
176 = 120 + QP + RS
Since QP = RS (rectangle),
56 / 2 = 28
Area of rectangle = 50 x 28
= 1400
Date Posted:
4 years ago
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