Area of Triangle Video

What formula can be used to calculate the area of a triangle?

• 1/2 times length times width

• Base plus height times 2

• Base times height divided by 2

• Length times width divided by 2

Why do we take half of the base times height when calculating the area of a triangle?

• Because a triangle is half of a square

• It's a mathematical tradition

• To simplify the calculation

• Because a triangle is half of a rectangle when doubled

What shape do two identical triangles form when placed together?

• A square

• A circle

• A parallelogram

• An octagon

What is the area of a triangle with a base of 9 meters and a height of 4 meters?

• 36 square meters

• 18 square meters

• 22 square meters

• 13 square meters

If a triangle has a base of 5 yards and a height of 11 yards, what is its area?

• 30.5 square yards

• 16 square yards

• 55 square yards

• 27.5 square yards