Question

area of triangle = \\( \frac { 1 } { 2 } b h \\)
what are the actual base and height of
the trampoline?
actual base = 8 ft
actual height = 10 ft
what is the actual area of the trampoline?
\\( \square \mathrm { ft } ^ { 2 } \\)

Explanation:

Step1: Calculate the actual base and height

Given the scale \(1\) in. : \(2\) ft.
For the base: The drawing base is \(4\) in.
Actual base \(b = 4\times2=8\) ft.
For the height: The drawing height is \(5\) in.
Actual height \(h = 5\times2 = 10\) ft.

Step2: Calculate the area of the triangle

The formula for the area of a triangle is \(A=\frac{1}{2}bh\).
Substitute \(b = 8\) ft and \(h = 10\) ft into the formula:
\(A=\frac{1}{2}\times8\times10\)
First, calculate \(8\times10=80\).
Then, \(\frac{1}{2}\times80 = 40\)

Answer:

\(40\)