Area & Perimeter Rectangles/Triangles

Front

What is the definition of Perimeter?

Back

The distance around a shape.

Front

What is the definition of Area?

Back

The amount of space inside a shape.

Front

How do you calculate the Perimeter of a rectangle?

Back

Add the lengths of all four sides or use the formula: P = 2(length + width).

Front

How do you calculate the Area of a rectangle?

Back

Multiply the length by the width: A = length × width.

Front

What is the formula for the Area of a triangle?

Back

A = 1/2 × base × height.

Front

If a rectangle has a length of 10 cm and a width of 5 cm, what is its Area?

Back

50 square cm (A = 10 cm × 5 cm).

Front

If a triangle has a base of 8 cm and a height of 5 cm, what is its Area?

Back

20 square cm (A = 1/2 × 8 cm × 5 cm).

Front

What is the Perimeter of a square with a side length of 4 cm?

Back

16 cm (P = 4 × side length).

Front

If a rectangle has a length of 12 m and a width of 3 m, what is its Perimeter?

Back

30 m (P = 2(12 m + 3 m)).

Front

What is the Area of a square with a side length of 6 cm?

Back

36 square cm (A = side length × side length).