Question
The ratio between the number of sides of two regular
polygons is 1 : 2 and the ratio between their interior angle is 2 : 3. Then the number of sides of these polygons are respectively?Solution
Let the side of polygon is = x, 2x So interior angle = ((N-2)Ă—180)/N Where N = total number of sides, ((x-2)Ă—180)/x : ((2x-2)Ă—180)/2x = 2 : 3 (((x-2)Ă—180)/x)/(((2x-2)Ă—180)/2x) = 2/3 (2(x-2))/((2x-2)) = 2/3 3x - 6 = 2x - 2 x = 6 - 2 = 4 So, sides of polygon = 4, 8
The lowest layer of atmosphere is known as Troposphere. It extends upto a height of _____ km along the equater and ____km along the poles.
Heavy infestation of which of the following causes poor ploughing performance?
Breakeven point is determined by
A soil with a PH value of 8 is consideredÂ
Which of the following is NOT an objective of drip irrigation?
Disorders like Hollow Stem of Cauliflower; Browning of Cauliflower ; Top sickness of Tobacco is caused due to the deficiency ofÂ
Which plant growth regulator promotes cell division and is often used in tissue culture for plant propagation?
Which of the following organelles is responsible for dark reaction in plant cells?
…………….. was established in 1972 under the Ministry of commerce and industry for promotion of export of marine products from India.
...In apples, edible part of the fruit develops from which part of flower?Â
Relevant for Exams:
