Question

What is the approximate area that is shaded red?

Answer 1

To find the area that is shaded red, you find the area of the rectangle and subtract it by the area of the triangle.

Area of a rectangle:

A = l × w             [ l = 11 in ; w = 6in ]    Plug these numbers into the equation

A = 11 · 6

A = 66 in²

Area of a triangle:

$A=\frac{1}{2}bh$     [ b = 4 in ; h = 6 in ] Plug these #s into the equation

$A = \frac{1}{2}(4)(6)$

$A=\frac{24}{2}$

A = 12 in²

Area of rectangle - Area of triangle = Area of the shaded region

66 in² - 12 in ² = 54 in²

Your answer is B