In the figure, we can consider that the base is the side that mesures 12 in and that the height is the side that measures 15 in, since that sides are perpendicular. So, we just need to use the given formula:

$A = \dfrac{bh}{2}\Longrightarrow A = \dfrac{12\cdot15}{2}\Longrightarrow A=6\cdot15\Longrightarrow \boxed{A = 90~\text{in}^2}$

Hence, the area of the triangle is 90 in² (B).

5 0

3 years ago

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The square root of 1/144 simplified

PSYCHO15rus [73]

1/12 is the square root of 1/144

8 0

3 years ago

I really need help here I don’t know how to do this

sattari [20]

Answer:

Second box for Justifications: Subtraction Property of equality

Third box for steps: $\frac{2}{3} y=-6$

Fourth box for steps: $\frac{2}{3} y*\frac{3}{2} =-6*\frac{3}{2}$

Fourth box for Justifications: Multiplication Property of equality

Fifth box for steps: $y=-9$

7 0

3 years ago