Find the area (in cm²) of a semi-circle of radius 35 cm.
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In an equilateral triangle ABC, G is the centroid. Each side of the triangle is 6 cm. The length of AG is
On walking 100 metres towards a building in a horizontal line, the angle of elevation of its top changes from 45 to 60 deg. What will be the height (in metres) of the building?
a and b are irrational numbers such that a+b = q is a rational number; then ab is
Chandan travelled equal distance with speed of 3 kmph, 4 kmph and 8kmph and takes a total time of 42.5 min. Find the total distance in km.
If Mr. Raghav taught a total of 500 hours, then what is the difference in number of hours of teaching algebra and modern Maths?
Due to increase of k% in the side, the area of a square increases by 69%. What is the value of k?
If the length of one side and the diagonal of a rectangle are 8 cm and 17 cm respectively, then find its perimeter