Area/Perimeter/Pythagorean Theorem

Front

What is the formula for the area of a circle?

Back

Area = πr², where r is the radius.

Front

What is the formula for the circumference of a circle?

Back

Circumference = πd, where d is the diameter.

Front

What is the difference between radius and diameter?

Back

Radius is half the diameter; diameter is twice the radius.

Front

What is the Pythagorean Theorem?

Back

In a right triangle, a² + b² = c², where c is the hypotenuse.

Front

How do you find the area of a rectangle?

Back

Area = length × width.

Front

How do you find the perimeter of a rectangle?

Back

Perimeter = 2(length + width).

Front

What is the area of a triangle?

Back

Area = 1/2 × base × height.

Front

What is the formula for the perimeter of a triangle?

Back

Perimeter = side1 + side2 + side3.

Front

What is a hypotenuse?

Back

The hypotenuse is the longest side of a right triangle, opposite the right angle.

Front

If a circle has a diameter of 10 meters, what is its radius?

Back

Radius = 10m / 2 = 5m.