Two circles of radii 18 cm and 12 cm intersect each other and the length of their common chord is 16 cm. What is the distance (in cm) between their centres?
\(2\sqrt{5}(2+\sqrt{13})\)
\(2\sqrt{5}(4-\sqrt{13})\)
\(2\sqrt{5}(4+\sqrt{13})\)
\(2\sqrt{5}(-2+\sqrt{13})\)
The value of cot2 46° - sec2 44° +(sin2 1° + sin2 3° + sin2 5° +….+ sin2 89°) is:
If (1 + cot θ)² (1 + (cot θ)²)⁻¹ is equal to k, then \(\sqrt{k}\) = ?
Study the pie chart and answer the question that follows.
The given pie chart shows the degree of cost incurred in different expenditure on the construction of a house. The total expenditure is ₹31,50,000.
What is the percentage of expenditure on cement?
A man covers \(\dfrac{5}{12}\) of a total journey by \(\dfrac{7}{18}\) train, of the journey by bus and the remaining 7 km on foot. His total journey (in km) is: