Find the area of an isosceles trapezoid, the base of which is 12 cm and 18 cm, and the side is 28 cm.
| November 25, 2020 | education
trapezoid area formula: 1/2 h (a + b)
we know a and b – bases
since we know the base and the side, we will find the height by the Pythagorean theorem: 28 ^ 2-6 ^ 2 = 748, √748
we substitute according to the formula. 1/2 * √748 (12 + 18) = 15 √748
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