Question
The circumference of a circle is equal to the perimeter
of a rectangle whose length and breadth are in ratio 7:5, respectively. If the area of the rectangle is 4235 cm2 , then find the radius of the circle.Solution
Let the length and breadth of the rectangle be 7x cm and 5x cm, respectively According to the question, 7x Γ 5x = 4235 => x2 = 4235/35 = 121 => x = 11 Therefore, perimeter of the rectangle = 2 Γ (7x + 5x) = 264 cm Let the radius of the circle be βrβ cm According to the question, 2Οr = 264 Or, r = 264 Γ (7/44) = 42 cm
40.02% of 1220.05 = ?2 + 29.09 Γ 7.99
- 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.)...
(9/10 of 3999.79) - β2499.83 + (17.81% of 1199.81) = ?
Arjun began participating in a Casino game. In the first round, he tripled the amount of money he had and then gave Rs. 'b' to Bhuvan. In the second rou...
Direction: Please solve the following expression and choose the closest option
Solve the given equation for ?. Find the approximate value.
(124.85% of 639.77 β 39.85% of 450.21) Γ (β224.85 Γ· β35.96) = ?
...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.)...
20.132 Γ· 62.5% of 11.16 = ? + 5109.21
A regular hexagon has a side length of 8 units. What is the area of the half of the hexagon?
Relevant for Exams:
