A compound shape is made up of several simple 2D shapes. To calculate the perimeter, label and add up the length of each side. This shape is made from two rectangles. What is the perimeter of this ...
The area of the rectangle is 8 cm 2. Two triangles make the rectangle. The area of one triangle is half the area of the rectangle. \(8 \div 2 = 4~\text{cm}^2\) The area of a triangle can also be ...
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