how to draw a decagon ? its too hard....

Dear Student!

A decagon is a polygon with ten sides and ten angles.

In order to construct a decagon, choose any 10 angles such that their sum is 360°.

Let us take the 10 angles as 36°, 36°, 36°, 36°, 36°, 36°, 36°, 36°, 36° and 36°.

Follow the given steps to construct the decagon.

Step1 : Draw a circle of any radius and centre O.

Step 2: Take a point A on the circle join OA.

Step 3 : Draw ∠AOB = 36° using a compass. Let the arm OB meet the circle in B.

Step 4 : Similarly, draw ∠COB = ∠DOC = .... = ∠JOA = 36° where, C, D, E, … J are points on the circle.

Step 5 : Join AB, BC, CD, …, IJ and JA.

∴ ABCDEFGHIJ is the required regular polygon.

Cheers!

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