area and perimeter of triangles

Front

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

Back

Area = 1/2 × base × height

Front

What is the perimeter of a triangle?

Back

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

Front

If a triangle has sides of lengths 5 cm, 12 cm, and 13 cm, what is its perimeter?

Back

30 cm

Front

How do you find the area of a triangle with a base of 10 m and a height of 5 m?

Back

Area = 1/2 × 10 m × 5 m = 25 m²

Front

What are the units used to measure area?

Back

Square units (e.g., square meters, square centimeters) are used to measure area.

Front

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

Back

The area of a triangle depends on the base and height; both must be perpendicular to each other.

Front

If the area of a triangle is 36 square meters and the base is 6 meters, what is the height?

Back

Height = (Area × 2) / base = (36 m² × 2) / 6 m = 12 m.

Front

What is the perimeter of a triangle with sides measuring 7 cm, 8 cm, and 9 cm?

Back

The perimeter is 7 cm + 8 cm + 9 cm = 24 cm.

Front

If a triangle has a base of 4 inches and a height of 3 inches, what is its area?

Back

Area = 1/2 × 4 in × 3 in = 6 in².

Front

What is the perimeter of a triangle with a perimeter of 50 cm and one side measuring 20 cm?

Back

If one side is 20 cm, the sum of the other two sides is 50 cm - 20 cm = 30 cm.