Question
Each interior angle of a regular polygon is 135°.
Then find out how many diagonals are there?Solution
Interior angle of polygon = 135° So exterior angle of regular polygon = 180° - 135° = 45° Then total side of polygon = (360°)/(exterior angle) = (360°)/(45°) Total side = 8 Then total Diagonals = n(n - 3)/2 {Where n = side} = (8×5)/2 = 20 Diagonals .
The question consists of two statements numbered “I and II” given below it. You have to decide whether the data provided in the statements are suffi...
If the length of the room is 10 m, then what is the height of the room?
I. The cost of painting the walls of the room at the rate of Rs. 25 per s...
The question consists of two statements numbered “I and II” given below it. You have to decide whether the data provided in the statements are suffi...
The ratio between the present ages of the Mohit and Rekha is 2:3. Find the present age of the Rekha.
I: Difference between the present ages of th...
What is the length of a wooden board of width 6 metres and thickness one-third of the width?
Statement I: Surface area of the board is 152 m².
What is the area of circle?
I. The radius of the circle is one third the length of a rectangle and the breadth of the rectangle is one third the ...
- What is the smallest number of the six numbers? Statement I: The average of six consecutive odd numbers is 8. Statement II: The sum of six consec...
Is 'x' an even number?
Statement I: 'x' is not divisible by 8.
Statement II: When 1 is added to three times 'x', ...
The question consists of two statements numbered “I and II” given below it. You have to decide whether the data provided in the statements are suici...
What is the age of a class teacher?
I. There are 13 students in the class.
II. The average age of students and the teacher is 16 years.
Relevant for Exams:
