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Answer:
h = 30 * 2 / 12
h = 5
Step-by-step explanation:
A = b*h / 2
by rearranging this formula we get
h= A*2/b
you can check the solution by putting it in the formula that gives you the area. if it equals 30, it checks out.
pls brainliest (although a second answer is needed to give the crown)