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otez555 [7]
3 years ago
7

Please help me idk this

Mathematics
1 answer:
Vanyuwa [196]3 years ago
4 0

Answer:

82.5

Step-by-step explanation:

I'm assuming you have to find the area of the triangle to find out how much cardboard she needs so you need the formula:

A =\frac{1}{2}bh

A =\frac{1}{2} 11 x 15

A =\frac{1}{2} 165

A = 82.5

Sorry if its wrong

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