2019 · Q47
All the four sides of a parallelogram are of equal length. The diagonals are in the ratio 1:2. If the sum of the lengths of the diagonals is 12 cm, then what is the area of the parallelogram?
Elementary MathematicsQuadrilaterals and Polygons
- A9 cm²
- B12 cm²
- C16 cm²
- D25 cm²
Explanation
All sides equal means rhombus. Diagonals in ratio 1:2 summing to 12 are 4 and 8. Area = d1.d2/2 = 16 cm^2.