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13. Top surface of a raised platform is in the shape of aregular octagon as shown in figure. Find the area ofoctagonal surface.(a) 219 m(c) 119 m(b) 129 m(d) 149 m2

Answer»

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119 m^2 is the best answer

119m^2 is the best answer

119 m² is the right answer of this question

c is the right answer

option C is right answer

option c right answer

119 m is right answer given in the question

C) 119m^2 is correct answer that question

length=11mbreadth=5mArea of rectangle=(length×breadth) =(11×5) =55m²and,height=4mfirst side=11msecond side=5mArea of 2 trapezium=½×h(first side + second side) =½×4(11+5)=32×2=64m²

55+64=119m²

option (c) is answer to your question



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