If t if the angle of elevation of a cloud from a point of h metre above a lake is alpha and the angle of depressionoffice reflection in the lake is beta prove that the height of the cloud is
h(tan beta tan alpha)/(tan beta- tan alpha)
Question
If the circumference of a circular sheet is154m find its radius .Also find the area of the sheet (take22_7
1.a) a shot put is a solid sphere made of metal and its mass is equal to the product of its volume and density .We need to find the volume of the sphere.
B)a hemispherical bowl has a radius of 3.5cm. What would be the volume of water it would contain
B)a hemispherical bowl has a radius of 3.5cm. What would be the volume of water it would contain