# Find the length of the side of the parallelogram, the area of which is 10 cm2; the length of the other side is 5 cm

September 22, 2021 | education

| **Find the length of the side of the parallelogram, the area of which is 10 cm2; the length of the other side is 5 cm, the degree measure of one of the angles is 30 degrees.**

We use the formula for the area of a parallelogram in terms of the lengths of its sides and the sine of the angle between them, and from it we express the length of the side AB.

The parallelogram area is equal to: Savsd = AB * AD * SinBAD.

AB = Savsd / AD * Sin30 = 10/5 * (1/2) = 4 cm.

Answer: The dina of the other side of the parallelogram is 4 cm.

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