Q1- Calculate the number of sides of a regular polygon whose interior angles are each 150degrees.
Q2- Find the height of a rectangular box of length 8cm, width 6cm where the length of diagnol is 11cm.
Q3- An aircraft flies equal distance South-East and then South-West to finish 120km due South of its starting point. How long is each part of its journey.
Q4- A cone has base radius 5cm and slant height 11cm. Find the vertical height.