Question
Sun January 01, 2012 By:

# All the vertexes of rhombus lie on a circle. Find the area of rhombus if the area of circle is 1256 cmÂ².

Sun January 01, 2012
If all the vertices of rhombus lie on circle then it must be a square.
Now area of circle  = 1256
So, (pi)r2 = 1256
3.14r2 = 1256
r2 =  400
r = 20 cm
Diameter of circle = 40 cm
Here, the diagonals are equal and must be the diametre of circle,
that is both diagonals are 40 cm
Thus area of rhombus = (1/2)d1d2 = (1/2)(40)(40) = 800 cm2
Related Questions
Mon April 03, 2017

# two circles touch internally.the sum of their areas is 116cm and the distance between their centers is 6cm.find the radii of the circles.

Tue March 28, 2017

# No diagram is given. This is from revision exercise in RD Sharma. What is the other possible diagram for this question? is there any difference between circumference and perimeter of semi-circle? (i thought circumference is Ï€r nd perimeter is Ï€r+2r, am i right?)

<<<<<<< .mine ======= >>>>>>> .r8835