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What is the Area of Octagon whose side is 4

Octagon CalculatorArea of octagon is 77.2548 for the given side is 4, refer the calculation summary and work with steps for detailed explanation.
Calculation Summary
Side4 in
Area77.2548 in²

Work with steps to find Area of Octagon with sides 4

Question:
What is the area of octagon, if it has a side of 4 inches?
Workout :
step1 Address the formula, input parameters and values
side = 4 in

step 2 Find Area of Octagon using side value
Area A = 2 (1 + 2 ) s²
= 2 x (1 + 2 ) x (4)² in²
= 2 x (1 + 1.4142 ) x 16 in²
= 2 x 2.4142 x 16 in²
Area A = 77.2548 in²

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