The area and perimeter of rectangle are respectively; 160 cm² and 24√5 cm
We are given;
Diagonal of rectangle = 20 cm
Ratio of two sides of rectangle = 2:1
Thus, let the length of sides be x and 2x. Thus;
x² + (2x)² = 20²
5x² = 400
x² = 400/5
x² = 80
x = √80
Thus, area of rectangle is;
A = 2(√80) * √80
A = 160 cm²
Perimeter = 2(2(√80) + √80)
Perimeter = 6√80 = 24√5 cm
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