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03-04-2017
Mathematics

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30 min before test please help !!numbers 13 and 14

30 min before test please help numbers 13 and 14 class=

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Аноним Аноним

03-04-2017

For 13. just add all the sides.

4 + 21 + 23 + 7 + 9 = 64

For 14. multiply width and height of both shapes then add them together.

1.7 x 5.2 = 3.74 ( rectangle area )
3.0 x 3.0 divided by 2 = 4.5 ( triangle area )

Add the two answers

3.74 + 4.5 = 8.24

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