Science, asked by Supervishnu12, 9 months ago

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Answered by priyanshukumarjha89
1

55m2

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Answered by komal6450
1

Answer:

The answer is 119 cm².

As, divide the octagon into

a reactangle and 2 trapeziums .

Now, Area of rectangle = L× B= 11×5=55cm²

Area of 2 trapeziums=2× 1/2×(S1+S2)×H

= 2 × 1/2×(11+5) × 4

= 64 cm²

So,area of octagon= 64 + 55

= 119cm²

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