Area of Triangles

Front

What is the formula for the area of a triangle?

Back

Area = 1/2 × base × height

Front

What do you need to calculate the area of a triangle?

Back

You need the base and the height of the triangle.

Front

If the base of a triangle is 10 cm and the height is 6 cm, what is the area?

Back

Area = 1/2 × 10 cm × 6 cm = 30 cm²

Front

What is the perimeter of a triangle?

Back

The perimeter is the sum of the lengths of all three sides.

Front

If a triangle has sides of lengths 5 cm, 7 cm, and 8 cm, what is its perimeter?

Back

Perimeter = 5 cm + 7 cm + 8 cm = 20 cm

Front

What is the area of a triangle with a base of 12 ft and a height of 5 ft?

Back

Area = 1/2 × 12 ft × 5 ft = 30 ft²

Front

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

Back

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

Front

How does changing the height of a triangle affect its area?

Back

Increasing the height increases the area, while decreasing the height decreases the area.

Front

What is the area of a triangle with a base of 14 cm and a height of 4 cm?

Back

Area = 1/2 × 14 cm × 4 cm = 28 cm²

Front

What units are used to measure the area of a triangle?

Back

Square units, such as cm², m², ft², etc.