Area and Perimeter

Front

What is the formula for the perimeter of a rectangle?

Back

P = 2l + 2w, where l is the length and w is the width.

Front

What is the formula for the area of a rectangle?

Back

A = l × w, where l is the length and w is the width.

Front

What is the formula for the area of a triangle?

Back

A = 1/2 × b × h, where b is the base and h is the height.

Front

What is the formula for the area of a circle?

Back

A = πr², where r is the radius.

Front

If the perimeter of a rectangle is 30 cm and the length is 10 cm, what is the width?

Back

Width = 5 cm.

Front

Find the area of a rectangle with a base of 9 m and a height of 3.5 m.

Back

Area = 31.5 m².

Front

What is the perimeter of a rectangle with length 12 cm and width 8 cm?

Back

Perimeter = 40 cm.

Front

If the area of a rectangle is 50 m² and the width is 5 m, what is the length?

Back

Length = 10 m.

Front

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

Back

Perimeter = 24 cm.

Front

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

Back

Area = 16 cm².