How to find the second side of a trapezoid if the base is 9, height 5, area 60.

univerkov | August 15, 2021 | education

Let the base length BC = 9 cm.

We apply the trapezoid formula and express the base AD from it.

Savsd = (BC + AD) * CH / 2.

(BC + AD) = 2 * Savsd / CH.

АD = (2 * Savsd / СН) – ВС = (2 * 60/5 – 9 = 24 – 9 = 5 cm.

Answer: The length of the second base is 15 cm.

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