Triangle and Parallelogram Concepts

Gina calculates the area of a parallelogram by dividing it into two triangles, labeled as red and green. She uses the formula for the area of a triangle, 1/2 * base * height, to find the area of each triangle. Both triangles have a base of 12 units and a height of 6 units. By calculating the area of each triangle and combining them, Gina finds the total area of the parallelogram to be 72 square units.

What method did Gina use to find the area of the parallelogram?

• By dividing it into rectangles

• By using a formula for circles

• By creating triangles

• By measuring directly

What is the base length of the red triangle?

• 6 units

• 10 units

• 8 units

• 12 units

What is the height of the red triangle?

• 6 units

• 7 units

• 8 units

• 5 units

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

• Base plus height

• Base divided by height

• Half of base times height

• Base times height

What is the total area of the parallelogram?

• 96 square units

• 72 square units

• 60 square units

• 84 square units