The areas of two similar triangles are ^@ 121\space cm^2^@ and ^@4\space cm^2^@ respectively. If the altitude of the bigger triangle is ^@8.8 \space cm^@, find the corresponding altitude of the smaller triangle.
A circle is inscribed in a ^@ \triangle ABC ^@, touching ^@ BC, CA, ^@ and ^@ AB ^@ at points ^@ P, Q, ^@ and ^@ R ^@ respectively. If ^@ AB = 11 \space cm, AQ = 8 \space cm ^@ and ^@ CQ = 6 \space cm ^@ then find the length of ^@ BC ^@.
Find the area of the major sector of a circle with radius ^@10 \space cm^@ when the angle subtended by the minor arc is ^@90^\circ^@.(Use ^@\pi = 3.14^@)
Selena filled a glass with milk. The lower base radius and the upper base radius of the glass is ^@5 \space cm^@ and ^@7 \space cm^@ respectively. The height of the glass is ^@ 16 \space cm^@. At first, the glass is filled full with milk and the milk is poured into another container which is cylindrical in shape with the diameter and the height as ^@ 26 \space cm ^@ and ^@ 20 \space cm ^@ respectively. Again the glass is filled one-fourth with milk and then this milk is poured into the same cylindrical container. How much more milk is to be put into the cylindrical container so as to fill the container up to the brim? (Where ^@\pi = 3.14^@)
In this diagram, the triangle represents men, the square represents teachers and the circle represents tall. Find the number of teachers who are not tall.