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22-02-2017
Mathematics

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Could someone help me with number 23 and plz explain it

Could someone help me with number 23 and plz explain it class=

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22-02-2017

The area of one would be 50cm sq, so both would be 100 cm sq
because the height is 4 cm and the the bases are 7 cm, and Cm.
The formula is
A=a+b/2 *h
so is the base plus the base divided by 2. And then you multiply the height.

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