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Question
Draw an equilateral triangle ABC of side 6 cm and find its incircle radius.
Draw an equilateral triangle ABC of side 6 cm and find its incircle radius.
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Solution
The correct option is C 1.7 cm
1. Draw an equilateral triangle of the given measurements.
2. Construct the angle bisectors of any two angles (B and C) and let them meet O. The point O is the centre of ΔABC.
3. With O as an external point drop a perpendicular to any one of the sides at P.
4. With O as centre and OP as radius, draw the circle. This circle touches all the sides of the triangle.
Inradius = 1.7 cm
1.7 cm
1. Draw an equilateral triangle of the given measurements.
2. Construct the angle bisectors of any two angles (B and C) and let them meet O. The point O is the centre of ΔABC.
3. With O as an external point drop a perpendicular to any one of the sides at P.
4. With O as centre and OP as radius, draw the circle. This circle touches all the sides of the triangle.
Inradius = 1.7 cm
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