Decomposing Area of Rectangles, Parallelograms, Trapezoids

Both pairs of opposite sides are parallel.

• Rectangle

• Square

• Parallelogram

• Rhombus

• Trapezoid

Consecutive angles are supplementary.

• Parallelograms

• Quadrilaterals

• Kites

• Triangles

Diagonals bisect each other.

• Parallelograms

• Kites

• Trapezoids

• Quadrilaterals

What is the area of the rectangle?

• 42 square centimeters

• 40 square centimeters

• 40 centimeters

• 42 centimeters

• 13 centimeters

Find the area.

• 8  5/12  ft²

• 12  8/25 ft²

• 1  37/64 ft²

• 12  1/3  ft²

Decompose the parallelogram into a rectangle. Which quadrilateral is the correct shape?

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Which is the correct area formula for Trapezoids?

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What is the area of this figure?

• 40 cm squared

• 45 cm squared

• 13 cm squared

Match the shape to its formula for area.

• A=(bh)/2

• Triangles

• A=[(b1+b2)*h]/2

• Rectangles and Parallelograms

• A=bh

• Trapezoids

A trapezoid has an area of 54 sq. cm. If the height is 6 cm and one of the bases is 12 cm, find the length of the other base.

• 3 cm

• 6 cm

• 9 cm

• 12 cm