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22-04-2018
Mathematics

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An isosceles triangle has a base of 4 and a height of x+3. If the area is 10, what is the value of x?

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helenelisabeth helenelisabeth

23-04-2018

The area of a isosceles triangle:
S=(bh)/2, where b is for base (=4) and h is for height (=x+3)
We get the equation:
10=(4*(x+3))/2
10=(4x+12)/2
4x+12=20
4x=8
x=2

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