Geometry, Area and Perimeter

Find the area of the rectangle.

• 140 cm²

• 70 cm²

• 34 cm²

• 64 cm²

Find the area of the rectangle.

• 36 in.²

• 72 in.²

• 26 in.²

• 13 in.²

Given the parallelogram, find the area. Hint - find the height first.

What is the area of the shaded region?

• 20 sq cm

• 4 sq cm

• 30 sq cm

• 24 sq cm

What is the perimeter of this square?

• 12 m

• 9 m

• 9 m²

• 6 m

What is the perimeter of this rectangle?

• 24 mi²

• 20 mi

• 12 mi²

• 10 mi

Find the area of the trapezoid.

• 69.5 square kilometers

• 40.6 square kilometers

• 114 square kilometers

• 179.4 square kilometers

Answer explanation

To calculate the area of a trapezoid, add the top and bottom sides together...divide that number by 2...and multiply the product by the height.

A=1/2(base 1 + base 2)xHeight

The figure shows a circle inside a triangle.  Which equation could be used to find the area of the shaded region?

• = ½bh - 2πr

• = πr² - ½bh

• = ½bh - πd

• = ½bh - πr²

What is the area of the shaded region?

• 14 m²

• 120 m²

• 106 m²

• 134 m²

What would you need to do to find the perimeter of the triangle? Explain.