sir
Asked by hemant2020 | 4th Nov, 2010, 06:10: PM
Expert Answer:
Dear Student,
The perimeter of an equilateral triangle of side a is given by 3a.
Also its altitude = √3a/2
For the circle of radius r, Area = Πr2
So, Πr2 = 154
=> r = 7cm
Also, r = 1/3 (√3a/2)
=> a = 2√3 r
=> a =14√3 cm
So, perimeter of triangle = 3a = 42√3 cm = 72.746 cm
Regards Topperlearning.
Dear Student,
The perimeter of an equilateral triangle of side a is given by 3a.
Also its altitude = √3a/2
For the circle of radius r, Area = Πr2
So, Πr2 = 154
=> r = 7cm
Also, r = 1/3 (√3a/2)
=> a = 2√3 r
=> a =14√3 cm
So, perimeter of triangle = 3a = 42√3 cm = 72.746 cm
Regards Topperlearning.
Answered by | 6th Nov, 2010, 01:18: PM
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