Question
In a regular polygon, the ratio of the exterior angle to
the interior angle is 4:5. Find the interior angle of the polygon.Solution
Sum of an exterior angle and interior angle of a regular polygon = 180 o  (Linear pair)
Let the exterior angle and the interior angle of the given polygon be 4x and 5x, respectively
4x + 5x = 180°
Or, 9x = 180°
Or, ‘x’ = (180°/9) = 20°
Required angle = 5x = 100°
47.87% of 749.76 + 35.11% of 399.76 = √? + 23.15 × 20.87
- What approximate value will come in place of the question mark (?) in the following question? (Note: You are not expected to calculate the exact value.)
(?)2 = (5.99)2 + (7.88)2 + 43.99
Train 'P' travels at a speed of 45 km/h and crosses train 'Q' in 15 seconds while moving in opposite directions. Determine the speed of train 'Q' if the...
`[(7.99)^2 - (13.001)^2 + (4.01)^3]^2=` ?
A number is first increased by 35% and then decreased by 35%. If the net change in the number is 302.5, then find the original number.
A bag contains red, green, and blue balls, with a total of 16 balls. The probability of drawing two blue balls in one draw is 3/8. How many blue balls a...
35.05% of 14.87 × (13.02 – ?) + 30.19 = 188.7
What approximate value will come in place of the question mark (?) in the following question? (Note: You are not expected to calculate the exact value.)...
