The areas of two similar triangles are 121cm2 and 4cm2 respectively. If the altitude of the bigger triangle is 8.8cm, find the corresponding altitude of the smaller triangle.
Selena filled a glass with milk. The lower base radius and the upper base radius of the glass is 5cm and 7cm respectively. The height of the glass is 16cm. 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 26cm and 20cm 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 π=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.