The middle line of the trapezoid is 30 cm and the sides are 20 cm and 18 cm, find the perimeter of the trapezoid
October 10, 2021 | education
| Let’s use the formula for the length of the midline of a trapezoid.
KP = (BC + AD) / 2.
(BC + AD) = 2 * KР = 2 * 30 = 60.
Let’s define the perimeter of the trapezoid.
P = AB + BC + CD + AD.
P = (BC + AD) + AB + CD = 60 + 18 + 20 = 98 cm.
Answer: The perimeter of the trapezoid is 98 cm.
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