1. Draw an equilateral triangle of sides 5 cm. Find its centroid, orthocentre and
circumcentre. What conclusion can you make?
5. Draw a AABC with BC = 7 cm, AB = 6 cm and AC = 4 cm. Find the incentre and
draw the incircle.
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Answer:
1. Centroid = orthocentre = circumcenter
At Radius r = a/2√3
r = 5/2√3 = 5/3.46410162
r = √2 = 1.44
The conclusion is that we can say,
For an equilateral triangle the centroid, orthocentre and circumcenter coincide on a same point.
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Answer:
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