Question
A tangent to a circle of radius 5 cm is drawn from a
point 13 cm away from the center of the circle. Find the length of the tangent.Solution
Length of tangent = √(distance² - radius²) = √(13² - 5²) = √(169 - 25) = √144 = 12 cm.
18    ?    20    13     22     11
13, 14, 23, 48, 97, 178, ?
What will come in place of the question mark (?) in the following series?
29, 42, ?, 95, 135, 184
79Â Â Â Â Â 86Â Â Â Â Â Â 76 Â Â Â Â Â Â 89Â Â Â Â Â Â 73 Â Â Â Â Â Â ?
...What will come in the place of questions (?) mark in the following questions.
40, 25, 30, 50, 105, ?
144, 288, 96, 384, 76.8, ?Â
5Â Â Â Â 12Â Â Â Â 26Â Â Â Â 47Â Â Â Â Â ? Â Â Â Â Â Â 110
...15.5, 62, 186, ?, 2232, 8928
36, 48, 24, 60, ?, 72
- What will come in place of the question mark (?) in the following series?
6, 24, 60, ?, 210, 336