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Lina20 [59]
3 years ago
15

Write the equation for the area of a triangle with a height that is 5 more than twice its base using one variable. Please help m

ee this is my last question
Mathematics
1 answer:
zysi [14]3 years ago
7 0

Answer:

A=b(b+\frac{5}{2} )

Step-by-step explanation:

hey there!!!

we know already that the area of a triangle is given as

A=\frac{1}{2}b *h

where b= base

and h= heigth

Given that the height is 5 times more than twice it base

let h= 2b+5

Now we substitute h=2b+5 in the area of the triangle

A=\frac{1}{2}b * (2b+5)

A= \frac{2b^2}{2} +\frac{5b}{2}

A= b^2+\frac{5b}{2}\\\\A=b(b+\frac{5}{2} )

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