Geometry Formulas

Front

What is the formula for circumference of a circle?

Back

C = 2πr, where C is the circumference and r is the radius.

Front

What is the formula for the area of a square?

Back

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

Front

What formula helps you find the area of a circle?

Back

A = πr², where A is the area and r is the radius.

Front

What is the formula for 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 formula for 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 value of π (pi) approximately?

Back

π ≈ 3.14.

Front

How do you calculate the diameter of a circle?

Back

D = 2r, where D is the diameter and r is the radius.

Front

What is the relationship between the radius and diameter of a circle?

Back

The diameter is twice the radius (D = 2r).

Front

What is the formula for 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 the volume of a rectangular prism?

Back

V = l * w * h, where V is the volume, l is the length, w is the width, and h is the height.