Rectangles, Circles, and Triangles

Front

What is the formula for the perimeter of a rectangle?

Back

The perimeter (P) of a rectangle is calculated using the formula P = 2(length + width).

Front

How do you calculate the area of a rectangle?

Back

The area (A) of a rectangle is calculated using the formula A = length × width.

Front

What is the formula for the circumference of a circle?

Back

The circumference (C) of a circle is calculated using the formula C = 2πr, where r is the radius.

Front

How do you calculate the area of a circle?

Back

The area (A) of a circle is calculated using the formula A = πr², where r is the radius.

Front

What is the formula for the perimeter of a square?

Back

The perimeter (P) of a square is calculated using the formula P = 4s, where s is the length of a side.

Front

How do you calculate the area of a square?

Back

The area (A) of a square is calculated using the formula A = s², where s is the length of a side.

Front

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

Back

The diameter (d) of a circle is twice the radius (r), so d = 2r.

Front

What is the value of π (pi) to two decimal places?

Back

The value of π (pi) is approximately 3.14.

Front

How do you convert feet to centimeters?

Back

To convert feet to centimeters, multiply the number of feet by 30.48.

Front

What is the formula for the area of a triangle?

Back

The area (A) of a triangle is calculated using the formula A = 1/2 × base × height.