The area of the rectangle is 12 cm 2. The area of a rectangle can also be calculated using the following formula. Calculate the area of the large rectangle. \(8 \times (4 + 4 + 4) = 8 \times 12 ...

A triangle is always half the area of a rectangle with the same height and width. To calculate the area of a triangle, multiply the height by the width (this is also known as the 'base') then ...