Octagonal mat

Octagonal mat formed from a square plate with a side of 40 cm so that every corner cut the isosceles triangle with leg 3.6 cm. What is the area of one mat?

Correct answer:

S =  1574.08 cm2

Step-by-step explanation:

A=3.62/2=25162=6.48 S=4024 A=4024 6.48=1574.08 cm2

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Tips for related online calculators
See also our right triangle calculator.
Calculation of an isosceles triangle.
See also our trigonometric triangle calculator.

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