Question

DRAW AN EQUILATERAL TRIANGLE OF 6CM AND CONSTRUCT ITS CIRCUMCIRCLE. MEASURE THE RADIUS​

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ANSWER

⇒ Draw a line segment BC=6cm

⇒ Take B and C as a center with radius 6cm and draw an arc meeting at point A.

⇒ Join AB and AC. We get ABC as the required equilateral triangle.

⇒ Draw a perpendicular bisector on sides AB,BC,AC meeting at point O.

⇒ Take O as the center with radius equal to OA and draw a circle.

⇒ We have to measure radius of the circumcircle, i.e the measure of length of OA.

∴ Radius of circle is 3.5≈2

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