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Maths Puzzle
Numerical Ability
Ratio and Proportion
The ratio of the perimeter of an equilateral triangle having an altitude equal to the radius of a circle, to the perimeter of an equilateral triangle inscribed in the circle is????
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- Answer is 2/3
- 9 years agoHelpfull: Yes(2) No(1)
- Let side of first equilateral triangle be a
Perimeter , P1= 3a
height of equilateral triangle = h= a*(sqrt3)/2
h= r , where r is radius of circle
each side of isosceles triangle inscribed in this circle has side = sqrt3*r
Perimeter, P2 = 3* sqrt3 *r= (3*sqrt3* a * sqrt 3 ) / 2 = 9a
Ratio P1: P2 = 2/3 :)
- 9 years agoHelpfull: Yes(2) No(1)
- check this link for image reference---> http://postimg.org/image/72kyp7cb3/
- 9 years agoHelpfull: Yes(2) No(0)
- thank you anjali.........:-)
- 9 years agoHelpfull: Yes(1) No(0)
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