Area of Triangles and Quadrilaterals

What is the formula for finding the area of a triangle?

• $base\ \times\ height$
  

• $length\ \times\ width$

• $\frac{base\ \times height}{2}$

• $\left(\frac{sum\ of\ the\ two\ bases}{2}\right)\times height$

What is the area of this triangle?

• 40 units²

• 25 units²

• 20 units²

• 18 units²

What is the area of this rectangle?

• 21 ft²

• 24 ft²

• 10.5 ft²

• 14 ft²

What is the name of this polygon?

• parallelogram

• rectangle

• square

• trapezoid

Which is the formula for calculating the area of a trapezoid?

• $base\ \times\ height$

• $\left(\frac{sum\ of\ the\ two\ bases}{2}\right)\times height$

• $\frac{base\ \times\ height}{2}$

• $length\ \times\ width$

Calculate the area of this trapezoid.

• 216 ft²

• 42 ft²

• 84 ft²

• 40 ft²

What is the area of this parallelogram?

• 39 ft²

• 78 ft²

• 58 ft²

• 84 ft²

What are the lengths of the two bases of this trapezoid?

• 7 and 5

• 6 and 8

• 8 and 5

• 6 and 7

What is the area of this square?

• 32 ft²

• 64 ft²

• 16 ft²

The area of this parallelogram is ______________.

• 14 m²

• 24 m²

• 48 m²

• 56 m²