Calculating Areas of Triangles, Parallelograms, and Trapezoids

What is the correct way to measure the height of a triangle?

• From the highest point to the lowest point at a 90-degree angle

• From any point to the base at any angle

• From the midpoint to the base

• At an angle that is not 90 degrees

What formula is used to calculate the area of a triangle?

• Length times width

• Base times height

• Base plus height

• 1/2 base times height

How is the height of a parallelogram measured?

• From the highest point to the lowest point at a 90-degree angle

• Parallel to the base

• At any angle from the base

• From the center to the base

What units are used to express area?

• Squared units

• Linear units

• Cubic units

• Kilograms

Which shapes are considered parallelograms?

• Only rectangles

• Circles

• Rectangles and squares

• Only squares

What is the area of a parallelogram with a base of 10 and a height of 4.3?

• 20.6

• 14.3

• 30

• 43

How many bases does a trapezoid have?

• Four

• Two

• One

• Three

In a trapezoid, what are the parallel sides called?

• Vertices

• Bases

• Diagonals

• Heights

What is the area formula for a trapezoid?

• Base times height

• (Base1 + base2) times height

• 1/2 (base1 + base2) times height

• 1/2 base times height

For a trapezoid with bases of 20 and 10, and a height of 5, what is the area?

• 30

• 75

• 150

• 100