Area of triangle using Heron’s formula: s = (13 + 14 + 15) / 2 = 21 Area = √[21(21 - 13)(21 - 14)(21 - 15)] = √[21 × 8 × 7 × 6] = √7056 = 84 m² Volume of soil dug = Area of field × depth Volume of well = πr²h = (22/7) × (7/2)² × h = 77h 84 = 77h h = 84/77 = 1.09 m Correct option: a
4 , 3, 4 , ? , 32
4 14 44 124 404
...2187, 1458, 972, ?, 432, 288
105 226 82 251 ? 280
2401 2402 1203 ? 105 26
...25 34 61 106 169 ?
...If 4 10 16 26 x 50
Then find the value of (x² - 1) + ( x² + 1).
...The question below is based on the given series I. The series I satisfy a certain pattern, follow the same pattern in series II and answer the question...
5 18 44 83 135 200 ...
5 10 40 80 320 640
4 a b c d e
Find the value of d.
...
