The area of the composite figure if ab ≅ bc ≅ cd ≅ da ≅ dn is (2π + 40) mm².
The area of a semicircle is the space contained by the circle. The area is the number of square units enclosed by the sides of the shape.
The area of the composite figure if ab ≅ bc ≅ cd ≅ da ≅ dn is given by adding an area of MKCD , area of ABCD, area of a semi-circle with AB as diameter.
Area of the composite figure = area of MKCD + area of ABCD + area of a semi-circle with AB as diameter.
The area of the composite figure is;
Area A = (DC + MK)/2 × DN + AB² + (1/2)×π×2²
Area A = (4 + 8)/2 × 4 + 4² + (1/2)×π×4
Area A = 24 + 16 + 2π = (2π + 40) mm²
Hence, the area of the composite figure if ab ≅ bc ≅ cd ≅ da ≅ dn is (2π + 40) mm².
To know more about the area of the semicircle click the link given below.
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