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Reptile [31]
3 years ago
9

Does anyone know how to do this it’s geometry

Mathematics
1 answer:
Mademuasel [1]3 years ago
5 0

Answer:

84

Step-by-step explanation:

First you take 21 and 8 and multiply them.

Then you divide the product by 2 since it is a triangle.

164/2=84

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