in the figure ABCDEFGH is a regular octagon of side 10 cm, where HC=(10+10√2)cm and AI=5√2cm. the area of the octagon is (take√2=1.41)
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Answer: 482 cm^2
Step-by-step explanation:
Area of regular octagon
= 2a^(1+√2)
= 2(10)^2(1+√2)
= 2(100)(1+√2)
= 200(1+√2)
= 200 + 200√2
= 200 + 200(1.41)
= 200 + 282
= 482
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