Question 122014
A triangle has an area of 144 sq. inches and its base is 2 ft. long. What is the altitude of the triangle? 
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The area of a triangle: {{{1/2}}}*b*h = area
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Convert 2 ft to inches; 24"
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Substitute for 144 for Area and 24 for b:
{{{1/2}}}* 24 * h = 144
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2 cancels into 24 so you have
12h = 144
h = {{{144/12}}}
h = 12 inches 
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:
Check solution:
A = .5*24*12
A = 144