Area and Perimeter

Front

What is the formula for finding the area of a rectangle?

Back

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

Front

What is the formula for finding the perimeter of a rectangle?

Back

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

Front

What is the formula for finding the area of a triangle?

Back

A = 1/2(b • h), where A is the area, b is the base, and h is the height.

Front

What is the perimeter of a triangle?

Back

P = a + b + c, where P is the perimeter and a, b, c are the lengths of the sides.

Front

What is the area of a square?

Back

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

Front

What is the perimeter of a square?

Back

P = 4s, where P is the perimeter and s is the length of a side.

Front

How do you convert square meters to square centimeters?

Back

Multiply by 10,000 (1 m² = 10,000 cm²).

Front

How do you convert square feet to square inches?

Back

Multiply by 144 (1 ft² = 144 in²).

Front

What is the area of a rectangle with length 10 m and width 5 m?

Back

A = 10 m • 5 m = 50 m².

Front

What is the perimeter of a rectangle with length 10 m and width 5 m?

Back

P = 2(10 m + 5 m) = 30 m.