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gregori [183]
4 years ago
12

Find the unknown length for the triangle

Mathematics
2 answers:
Sauron [17]4 years ago
6 0
Area for a triangle = (b*h)/2
h=12, b is unknown
so b*12/2=18(your total area)

12b/2=18 (times by 2 to isolate b)

12b=36 (divide by 12 to isolate b)

unknown length b=3
GrogVix [38]4 years ago
4 0
Unknown length = 18/12 = 1.5

answer
A.  1.5 ft
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