Question
The height of a sphere is 28 cm.
Find the surface area of the given sphere. (Take π = 22/7)Solution
ATQ, Surface area of sphere = 4 × π × radius² Height of sphere = Diameter of sphere So, radius of the given sphere = 28 ÷ 2 = 14 cm So, required area = 4 × (22/7) × 14² = 2464 cm²
What will come in the place of questions (?) mark in the following questions.
1204, 1218, ? , 1267, 1302, 1344
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, ?
What will come in place of the question mark (?) in the following series?
10, 135, ?, 226, 234, 235
- What will come in place of (?) in the given number series.
3, 6, 13, 26, 43, ? What value should come in the place of (?) in the following number series?
5670, 1620, 540, 216, 108, ?
32, 48, 72, 108, 162, ?
143 119 107 101 98 ?
1236, 1445, 1675, 1933, 2226, ?
58 83 133 ? 308 433
74, 84, 64, 104, ?, 184
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