Area of Triangles

Front

What is the formula for the area of a triangle?

Back

Area = 1/2 × base × height

Front

If the base of a triangle is 10 cm and the height is 5 cm, what is the area?

Back

Area = 1/2 × 10 cm × 5 cm = 25 cm²

Front

What units are used to measure area?

Back

Square units (e.g., cm², m², yd²) are used to measure area.

Front

What is the height of a triangle?

Back

The height is the perpendicular distance from the base to the opposite vertex.

Front

How do you find the height of a triangle if you know the area and the base?

Back

Height = (2 × Area) / base.

Front

What is the area of a triangle with a base of 8 m and a height of 6 m?

Back

Area = 1/2 × 8 m × 6 m = 24 m²

Front

What is a right triangle?

Back

A right triangle has one angle that measures 90 degrees.

Front

How does the area of a triangle change if the base is doubled?

Back

If the base is doubled, the area also doubles, assuming height remains the same.

Front

What is the area of a triangle with a base of 12 yd and a height of 4 yd?

Back

Area = 1/2 × 12 yd × 4 yd = 24 yd²

Front

What is the relationship between the base and height in calculating the area of a triangle?

Back

The area is directly proportional to both the base and height.