Area and Perimeter

Front

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

Back

A = (b * h) / 2, where b is the base and h is the height.

Front

What is the perimeter of a rectangle with length 8 units and width 3 units?

Back

Perimeter = 2(l + w) = 2(8 + 3) = 22 units.

Front

What is the formula to find the area of a rectangle?

Back

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

Front

What is the distance around a circle called?

Back

Circumference.

Front

What is the formula for the circumference of a circle?

Back

C = 2πr, where r is the radius.

Front

How do you find the area of a square?

Back

A = s², where s is the length of a side.

Front

What is the area of a circle with a radius of 2 ft?

Back

A = πr² = π(2)² = 4π ft².

Front

What is the perimeter of a square with a side length of 5 ft?

Back

Perimeter = 4s = 4(5) = 20 ft.

Front

What is the area of a triangle with a base of 4 units and a height of 3 units?

Back

A = (b * h) / 2 = (4 * 3) / 2 = 6 units².

Front

What is the area of a rectangle with a length of 10 units and a width of 2 units?

Back

A = l * w = 10 * 2 = 20 units².