Area and Circumference Formulas

This video from MooMooMath explains the area and perimeter formulas for common geometric shapes. It covers circles, parallelograms, rectangles, rhombuses, squares, trapezoids, and triangles. The video provides formulas for calculating the area and perimeter of each shape, including special cases like Heron's formula for triangles.

What is the formula for the circumference of a circle?

• πr^2

• 2πr

• r^2

• πd

How do you calculate the area of a rectangle?

• πr^2

• side^2

• base x height

• 1/2 base x height

Which formula can be used to find the area of a rhombus when the height is not given?

• 1/2 base x height

• 1/2 diagonal1 x diagonal2

• side^2

• base x height

What is the formula for the area of a trapezoid?

• 1/2 (b1 + b2)h

• b1 + b2 + s1 + s2

• base x height

• 1/2 base x height

If the height of a triangle is not given, which formula can be used to find its area?

• πr^2

• Heron's formula

• 1/2 base x height

• base x height