7th Grade Formula Review

Area of a Parallelogram

• A= b x h x 1/2

• A = B1 + B2/2 x h

• A= b x h

• A= b x l

Area of a Rhombus

• A= b x h x 1/2

• A = B1 + B2/2 x h

• A= b x h

• A= h x w

Area of a Trapezoid

• A= b x h x 1/2

• A = B1 + B2/2 x h

• A= b x h

• A= l x w

Area of a Triangle

• A= b x h x 1/2

• A = B1 + B2/2 x h

• A= b x h

• A= l x w

Area of a Square

• A= b x h x 1/2

• A = B1 + B2/2 x h

• A= b x l

• A= l x w

Area of a Rectangle

• A= b x h x 1/2

• A = B1 + B2/2 x h

• A= w x h

• A= l x w

Area of a Circle

• A= πr^2

• A= πd

• A= πd^2

• A= πr

Circumference of a Circle

• A= πr^2

• C= πd

• C= πd^2

• A= πr

Volume of a Prism

• V= b1 + b2 x h

• V= B x h

• A= b x h

• V= l x w x h

What do you need to know to find the volume of any shaped prism?

• The number of cubes that fit in the shape

• The area of one side

• The volume

• The area of the base