Area of trapeziums and rhombi
Mensuration · Mathematics
Study notes
Q: Trapezium: parallel sides 9, 15, height 8. Rhombus: diagonals 12, 16. Areas? Trapezium: (9+15)×8/2 = 24×4 = 96. Rhombus: 12×16/2 = 96. Same! Rhombus: 4 right triangles, each 6×8/2 = 24; 4×24 = 96 ✓!