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steposvetlana [31]
3 years ago
10

Make b the subject of the formulaA=1/2bh​

Mathematics
1 answer:
r-ruslan [8.4K]3 years ago
4 0

Answer:

\blue{b = \dfrac{2A}{h}}

Step-by-step explanation:

A = \dfrac{1}{2}bh

Step 1. Switch sides.

\dfrac{1}{2}bh = A

Step 2. Since the fraction 1/2 multiplies b, multiply both sides by the reciprocal of 1/2 which is 2.

2 \times \dfrac{1}{2}bh = 2 \times A

bh = 2A

Step 3. Since h is multiplying b, and you want b alone, divide both sides by h.

\dfrac{bh}{h} = \dfrac{2A}{h}

Answer:

b = \dfrac{2A}{h}

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Find the measure of the exterior angle.
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Answer:

1) 128°

2) 126°

3) 108°

<h2>Question one:</h2>

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<h2>Question two:</h2><h2></h2>

again, adding all the interior angles makes 180°. use this to make the equation.

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<h2>Question three</h2>

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