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