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marysya [2.9K]
3 years ago
13

Hi,so I've tried solving this problem for a while and I just don't get it,if you could give me some ideas I would appreciate it.

Thanks!
The problem is in the file attached :)​

Mathematics
1 answer:
ziro4ka [17]3 years ago
4 0

Answer:

187 cm²

Step-by-step explanation:

The bottom rectangle area is easy, it is 15*9 = 135 cm².

To find the area of the triangle, you only need the base width and its height (you don't need the hypotenuse). You can then use the formula: area triangle is base times half height.

The base width is 15-7 = 8 cm

The height is 22-9 = 13 cm

So the area of the triangle is 13*8/2 = 52 cm²

Together with the 135 of the rectangle that sums to 52+135 = 187 cm².

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