Question

Top surface of a raised plat from is in the shape of a regular octagon as shown in the figure find the area of the octagonal surface


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Answer 1

⇒Area of Trapezium=

2

1

(Sum of parallel lines)×height

⇒Area of the octagonal surface ABCDEFGH

=Area(trap.ABCH)+Area(rect.HCDG)+Area(trap.GDEF)

=[

2

1

(5+11)×4+(11×5)+

2

1

(11+5)×4

]m

2

=(32+55+32)m

2

=119m

2

.

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♥*♡∞:｡.｡Answer by Shreyas｡.｡:∞♡*♥

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