Opposite sides of parallelogram ABCD: AB = $(2 x + 5)$ cm and DC = 17 cm.
Also side BC = $(3 y - 4)$ cm and side AD = 11 cm.
Find the value of $x + y$ .

Question

Opposite sides of parallelogram ABCD: AB = (2x + 5) cm and DC = 17 cm. Also side BC = (3y - 4) cm and side AD = 11 cm. Find the value of x + y.

Accepted Answer

11. AB = DC: 2x + 5 = 17, so x = 6. BC = AD: 3y - 4 = 11, so 3y = 15, y = 5. x + y = 6 + 5 = 11.

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