2022 · Q72
A farmland is in the shape of a rhombus. The perimeter of the land is 100 m and the length of one of the diagonals is 40 m. The land is divided into four equal parts. What is the area of each part?
Elementary MathematicsQuadrilaterals and Polygons
- A150 square metre
- B225 square metre
- C300 square metre
- D450 square metre
Explanation
Side = 25 m; the other diagonal is 2√(25²-20²) = 30 m. Area = (40x30)/2 = 600 m², so each quarter is 150 m². Hence the keyed option is A.