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bazaltina [42]
3 years ago
8

#20, what is this answer ?

Mathematics
1 answer:
Charra [1.4K]3 years ago
8 0

Answer:

b = 2A/h

b = 6 inches

Step-by-step explanation:

A = \frac{1}{2} bh \\  \\ 2A =bh \\  \\  \purple{b =  \frac{2A}{h}}  \\  \\ plug \: A = 12 \: and \: h = 4 \\  \\ b =  \frac{2 \times \cancel{12}}{ \cancel4}  \\  \\ b = 2 \times 3 \\  \\ b \:  = 6  \: in

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