Question

Find the area of the octagon whose side is 20 cm?

A 1466 cm² Correct Answer Incorrect Answer
B 2024 cm² Correct Answer Incorrect Answer
C 1928 cm² Correct Answer Incorrect Answer
D 1684 cm² Correct Answer Incorrect Answer

Solution

Area of the octagon = 2 (side)² (√2 +1) Now, Area of the octagon = 2 (20)² (√2 +1) = 2 × 400 × 2.41 = 1928 cm²

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