Area of Triangles (Geo)

Front

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

Back

Area = 1/2 × base × height

Front

What does 'base' refer to in a triangle?

Back

The base is one side of the triangle, often the bottom side, used to calculate the area.

Front

What does 'height' refer to in a triangle?

Back

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

Front

If a triangle has a base of 7 units and a height of 9 cm, what is its area?

Back

Area = 1/2 × 7 × 9 = 31.5 cm²

Front

What is the perimeter of a triangle?

Back

The perimeter is the total length of all three sides of the triangle.

Front

How do you find the perimeter of a triangle with sides of 7 units, 9 units, and 16 units?

Back

Perimeter = 7 + 9 + 16 = 32 units

Front

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

Back

Area = 1/2 × 12 × 4 = 24 cm²

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.

Front

If the height of a triangle is doubled, what happens to the area?

Back

The area also doubles if the base remains the same.

Front

What is a right triangle?

Back

A right triangle has one angle that measures 90 degrees.