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Lera25
[3.4K]
3 years ago
10
The height of a triangle is 3cm less than the length of its base and is area is 27m,find the height
Mathematics
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answer:
Shkiper50
[21]
3 years ago
6
0
Area of a triangle=bh/2
27= x(x-3)/2
27= (x^2-3x)/2
54= x^2-3x
x^2-3x-54=0
(x-9)(x+6)=0
x=9, x=-6.
In this case, x must equal 9 since the base cannot be a negative number.
Final answer: Height=6 m
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