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03-05-2016
Mathematics

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Please answer the question from the attachment.

Please answer the question from the attachment class=

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Kimchicaik Kimchicaik

03-05-2016

Well. The formula for the area of a trapezoid is b1 + b2 over 2 times h.

a = b1 + b2 (h)
--------------------
2

3.9 = 4+2.5 (h)
--------------------
2

3.9 = 6.5(h)
----
2

height = 1.2 cm.

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