Question
The perimeter of a rhombus is 56 m and its height is 5
m. Its area is:Solution
Using formula, Area of rhombus = 4 x side Therefore, 4 x side = 56 ⇒ Side = 56/4 = 14 m As, rhombus is a parallelogram of equal sides, Its area = base × height = 14 × 5 = 70 m2
Find the wrong number in the given number series.
 31, 25.5, 36.5, 90, 353, 2838
Find the wrong number in the given number series.
22, 29, 50, 89, 134, 197
45, 54, 66, 84, 99, 120, 144
Find the wrong number in the given number series.
2, 6, 24, 121, 720, 5040
8, 7, 12, 35, 128, 635
Find the wrong number in the given number series.
88, 110, 148, 198, 275, 396
12, 14, 18, 26, 38, 64
5, 11, 19, 27, 41, 55
72, 80, 89, 153, 180, 394Â
8, 17, 35, 71, 143, 287