Question Text
Question 1 :
Find the length of each side of an equilateral triangle having an area of $9\sqrt{3}$ $cm^2$.
Question 3 :
The perimeter of an equilateral triangle is 60 m. Find the area.
Question 4 :
A rhombus shaped sheet with perimeter 40 cm and one diagonal 12 cm, is painted on both sides at the rate of Rs 5 per $m^2$ . Find the cost of painting.
