Question

Which are ways to decompose the composite figure into simpler shapes that you have area formulas for? Check all that apply.

Answer 1

1) separate the figure into simpler shapes whose area can be found. Then add the areas together.

2. Add smaller shapes to the composite figure that equal a larger shape to save time. Here it is useful as it also helps you find quicker measurements for opposite lines. So always look for opposite lines when considering adding a viable shape. Such shape needs to have the same equal measurement as another that cna be dotted lines and found quickly too.

3. Remember formulas.

Area Triangle = B x H /2

Area Parallelogram = B x H

Area Square rectangle = L x W

Area Semi Circle = pi * r^2/2

Area Sector Circle = θ × π 360 × r2 (when θ is in degrees)

Area of Segment = ( θ × π 360 − sin(θ)2 ) × r2 (when θ is in degrees)

Length of a circle = L = θ × π180 × r (when θ is in degrees)

The Area of a Segment is the area of a sector minus the triangular piece usually highlighted and so you add this to equal 360 degree.

Answer 2

A

B

C

thats the answer on edge :/