Area of Triangles

Front

What is the formula for the area of a triangle?

Back

A = 1/2 (B x H), where B is the base and H is the height.

Front

What does 'perimeter' mean in relation to a triangle?

Back

The perimeter of a triangle is the total distance around the triangle, calculated by adding the lengths of all three sides.

Front

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

Back

A = 1/2 (B x H) = 1/2 (10 cm x 5 cm) = 25 cm².

Front

What is the height of a triangle?

Back

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

Front

How do you find the perimeter of a triangle with sides measuring 5 cm, 7 cm, and 8 cm?

Back

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

Front

What is the area of a triangle with a base of 6 in and a height of 4 in?

Back

A = 1/2 (B x H) = 1/2 (6 in x 4 in) = 12 in².

Front

What is the base of a triangle?

Back

The base of a triangle is any one of its sides, often the one on which the triangle is considered to be standing.

Front

If a triangle has an area of 30 units² and a base of 10 units, what is its height?

Back

Using A = 1/2 (B x H), we can rearrange to find H: H = (2A) / B = (2 x 30 units²) / 10 units = 6 units.

Front

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

Back

The area of a triangle is directly proportional to both the base and the height; if either increases, the area increases.

Front

What is the area of a triangle with a base of 8 cm and a height of 3 cm?

Back

A = 1/2 (B x H) = 1/2 (8 cm x 3 cm) = 12 cm².