Question

The height of a triangle is twice its base. If its area is 121cm^2 Find its base​

Answer 1

Answer:

The base is 11 cm.

Step-by-step explanation:

The formula for the area of a triangle is $A = \frac{1}{2} bh$. If we plug in what we know to this equation, we are left with $121 = \frac{1}{2} * b * 2b$, which we now need to simplify.

First, we combine like terms.

$121 = \frac{1}{2} * 2b^{2}$

Then, we can eliminate the $\frac{1}{2}$ and $2$ on the right side of the equation, since they cancel each other out.

$121 = b^{2}$

Finally, we take the square root of both sides of the equation and find our answer:

$11 = b$

Answer 2

11 is the base
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