Question

two right angles were used to form the following figure use the ruler provided to measure the dimensions of the figure to the nearest quarter of an inch .which measurement is closest to the area of the Shaded region of the figure in square inches ?.

Answer 1

The area of the shaded region will be the area of the big rectangle minus the area of the small rectanlge. That is:

`A_S=A_(BR)-A_(SR)`

The area of a rectangle is given by:

`A=wl`

Then, plugging the value of each rectangle in the first equation we have:

`\begin{gathered} A_S=(5)(4)-(3)(3) \\ =20-9 \\ =11 \end{gathered}`

Therefore, the area of the shaded region is 11 sq in.