Question
The ratio between the number of sides of two regular
polygon is 1 : 2 and the ratio between their interior angles is 2 : 3. The number of sides of these polygons are respectively:Solution
Let number of side of first polygon = x & that of 2nd polygon = 2x ; then ratio of their interior angles = I(1): I(2) = 2:3 or (180 - E1):(180-E2) = 2:3 or 540 - 3E1 = 360 -2E2 oe 3E1 - 2E2 = 540-360 = 180 or 3(360/x) - 2(360/2x) = 180 or 1080/x -360/x = 180 or 720/x = 180 or x = 720/180 = 4
More Mensuration Questions
√323.89 × (3.20) ÷ 9.02 =?
- 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.)
23.98% of 624.99 = 19.98% of ? + 14.98% of 639.99
Direction: Please solve the following expression and choose the closest option
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.)...
- 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.)
12, 16, ?, 36, 52, 72
- 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.)
(6859.01)1/3 × 10.11 × 14.47 ÷ 20.32 = ? + 45.022
33.33% of 809.891 + 66.66% of 212.91 = ?
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