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Questions and Answers
True or false: The formula to find the area of the shaded region is: area of inner shape - area of outer shape.
True or false: The formula to find the area of the shaded region is: area of inner shape - area of outer shape.
False (B)
True or false: The area of a hexagon can be found using the formula A=(L^2n)/(4tan(180/n)).
True or false: The area of a hexagon can be found using the formula A=(L^2n)/(4tan(180/n)).
True (A)
True or false: The formula to find the area of a rectangle is bh.
True or false: The formula to find the area of a rectangle is bh.
False (B)
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Study Notes
- The area of the shaded region is found by subtracting the area of the unshaded region from the total area of the polygon.
- This applies to polygons with shaded regions in the center or on the sides.
- The formula to find the area of the shaded region is: area of outer shape - area of unshaded inner shape.
- Examples are provided for finding the area of shaded regions in triangles, rectangles, squares, and composite shapes.
- To find the area of a triangle, use the formula 1/2bh.
- To find the area of a rectangle, use the formula lw.
- To find the area of a square, use the formula s^2.
- Similar triangles can be used to find missing measurements.
- The area of a hexagon can be found using the formula A=(L^2n)/(4tan(180/n)).
- The key steps to finding the area of the shaded region are identifying the outer and inner shapes and applying the appropriate formula.
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