Answer:
base= 3
Explanation:
You need to work backwards to solve this problem
A= 1/2bh
with the information given, the equation should look like this:
12= 1/2b8
To get rid of the fraction, you flip it, and you multiply both sides by that (1/2 fliped is 2)
so 2* 12= 1/2b8 *2
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** You can see that the 1/2 and the two cancel each other out. This is why:
1/2* 2/1= 2/2
2/2=1
1 * b8 is just b8
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So now you have:
24= b8
you want to get b by itself, so you use inverse operations ( you divide both sides by 8)
24/8= b8/8
your final answer is 3=b
you can plug in 3 into the original equation to check your answer!!!