lisatutma lisatutma

21-08-2017
Mathematics

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In trapezoid HJLK, M and N are midpoints of the legs. Find KL. Help me please

In trapezoid HJLK M and N are midpoints of the legs Find KL Help me please class=

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Banabanana Banabanana

21-08-2017

MN is the mid-line of a trapezoid HJLK.
The length of the mid-line of a trapezoid is half of the sum of the lengths of its bases ⇒

(KL + HJ)/2 = MN
(KL + 45)/2 = 28
KL + 45 = 28 * 2
KL + 45 = 56
KL = 56 - 45
KL = 11

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