Question
The corresponding medians of two similar triangles are
16 cm and 20 cm. If the area of the first triangle is 288 cm, then find the area of the second triangle.Solution
Let the area of the second triangle = x cm² Then (Area of the first triangle) × (median of the second triangle) ² = (area of the second triangle) × (median of the first triangle) ² 288 × 400 = x × 256 x = 450cm²
13 19 32 52 ? 113
1290, 1225, 1175, ?, 1112, 1095, 1085
? , 864, 432, 144, 36, 7.2
106, 124, 88, 142, ?, 160
What value should come in the place of (?) in the following number series?
5670, 1620, 540, 216, 108, ?
7, 9, 21, ?, 107, 197
71, 79, 88, 152, ?, 393
14, 20, 29, 44, 65, ?
What will come in place of the question mark (?) in the following series?
2.5, 6.5, 18.5, 54.5, 162.5, 486.5, ?
22, 37, 63, 98, 148, ?