Question

find the area of this octagon
PLEASE SEE THE PIC
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Answer 1

Answer:

119m²

Step-by-step explanation:

Given:


Sides of octagon= 5 m.


Construction:  We Divide the octagon in 3 figures, two are  trapeziums whose parallel and perpendicular

sides are 11 m and 5 m respectively and third figure in middle is rectangle

having length and breadth 11 m and 5 m.


Area of Trapezium


= (1/2) × (Sum of parallel sides) × Perpendicular distance




= (1/2) (11+5)4


= 16 x 2


= 32m²



Area of 2 trapeziums = 64 m²




Area of Rectangle = Length x Breadth




= 11 x 5 = 55


Area of Rectangle = 55 m²




Total area of octagon = 64 + 55= 119





Total area of octagon = 119 m²


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Hope this will help you..