The sum of all terms of the arithmetic progression having ten terms except for the first term, is ^@93^@, and except for the sixth term, is ^@78^@. The ^@9^{ th }^@ term of the progression if the sum of the first and the fifth term is equal to ^@14^@ is
Tangents ^@ PA ^@ and ^@ PB ^@ are drawn from an external point ^@ P ^@ to two concentric circles with center ^@ O ^@ and radii ^@ 13 \space cm ^@ and ^@ 10 \space cm ^@ respectively. If ^@ AP = 7 \space cm ^@, what the length of ^@ BP ^@ ?
A chord of a circle of radius ^@ 70 \space cm ^@ subtends a right angle at the center. Find the area of the corresponding major segment.^@ \bigg[\pi = \dfrac { 22 } { 7 }\bigg] ^@
A building is in form of a right circular cylinder and cone as shown in the picture. The radius of cone and cylinder is 4 meters. The height of cylinder and cone are 4.5 meters and 3 meters respectively. Find the outer surface area of the building. (Assume π =