One of the bases of the trapezoid is 7 cm and the middle line is 11 cm. Find the second base of the trapezoid.

univerkov | May 26, 2021 | education

1. Let’s denote the second base of the trapezoid through x cm.

2. Since the middle line of the trapezoid is 11 cm, we will compose and solve the equation:

(7 + x) / 2 = 11;

7 + x = 11 * 2;

7 + x = 22;

x = 22 – 7;

x = 15.

3. The second base of the trapezoid is x = 15 cm.

Answer: the second base of the trapezoid is 15 cm.

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