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larisa86 [58]
3 years ago
7

A triangle has an area of 45 square units. Its height is 10 units.

Mathematics
2 answers:
OleMash [197]3 years ago
7 0
45=10x÷2 
45×2=10x
90=10x
9=x 
base is either 1,3,or 9
grin007 [14]3 years ago
5 0
Area = 1/2 bh
45= 1/2 b 10
45= 5b
Divide by 5
9=b
b=9
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