Answer:
420 cm²
Step-by-step explanation:
Area of composite shapes
- To calculate the area of a composite shape you must divide the shape into rectangles, triangles, or other shapes you can find the area of and then add the areas back together.
- You may have to calculate missing lengths before finding the area of some of the shapes.
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Other composite shapes may have cut-out sections.
Solve
To find the composite area of two or more shapes, simply find the area of each shape and add them together.
So,
18 cm × 20 cm = 360
10 cm × 6 cm = 60
Now, add the results together
360 + 60 = 420
Therefore, the area of the composite figure is 420 cm²
