Arithmetic Aptitude :: Area
- One of the four angles of a rhombus is 90 degrees. If each side of the rhombus is 20 cm, what will be the length of the longer diagonal?
- What is the area of the largest circle that can be drawn inside a square of side 20 cm?
- If the side of a square is equal to the diameter of a circle, what is the area of the square if the area of the circle is 81π sq. cm?
- The perimeter of a circle and an equilateral triangle are equal. Find the area of the equilateral triangle if the area of the circle is 141π.
- The diameter of a circle is increased by 100%. What is the percentage increase in area?
- The length, width, and height of a room are 7 m, 8 m, and 9 m respectively. What is the total area of the walls?