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polet [3.4K]
4 years ago
8

Help me and explain / gimme answers to number one

Mathematics
2 answers:
mina [271]4 years ago
8 0
Formula = b*h / 2

base = 15 + 6 =21
height = 8

21 * 8 = 168

168/2 = 84

The area is 84 in.

Hope this helped☺☺
Anna [14]4 years ago
5 0
Area of triangle = 1/2 x base x height

base = 15 + 6 = 21
height = 8

Area of triangle = 1/2 x 21 x 8 = 84 in²

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Answer: Area = 84 in²
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