Question

15 nArea = 90 in?Height =

Answer 1

The area of a triangle is:

`A=\frac{\text{base}\cdot\text{high}}{2}`

So we use this equation for all questions so:

1)

`\begin{gathered} 48=(b\cdot12)/(2) \\ b=(48\cdot2)/(12) \\ b=8 \end{gathered}`

2)

`\begin{gathered} 90=(15\cdot h)/(2) \\ h=(90\cdot2)/(15) \\ h=12 \end{gathered}`

3)

`\begin{gathered} 52=(b\cdot8)/(2) \\ b=(52\cdot2)/(8) \\ b=13 \end{gathered}`

4)

`\begin{gathered} 25=(5\cdot h)/(2) \\ h=(25\cdot2)/(5) \\ h=10 \end{gathered}`

5)

`\begin{gathered} 36=(b\cdot9)/(2) \\ b=(36\cdot2)/(9) \\ b=8 \end{gathered}`

6)

`\begin{gathered} 119=(14\cdot h)/(2) \\ h=(119\cdot2)/(14) \\ h=17 \end{gathered}`