The perimeter of the rectangle is 3m 64cm. What is the sum of the lengths of its two unequal sides?

P = 3 m 64 cm;

a + b -?

P = a + b + a + b = 2a + 2b = 2 (a + b), a – width, b – length;

2 (a + b) = 3 m 64 cm;

a + b = (3 m 64 cm) / 2;

a + b = 1 m 532 cm – the sum of the lengths of two unequal sides of the rectangle.

Answer: 1 meter 532 cm.

Explanation: Knowing the perimeter of the rectangle, we express the sum of the lengths of two unequal sides from the perimeter formula.