Selina Concise Mathematics Class 9 ICSE Solutions Chapter 14 - Rectilinear Figures [Quadrilaterals: Parallelogram, Rectangle, Rhombus, Square and Trapezium]
Selina Concise Mathematics Class 9 ICSE Solutions Rectilinear Figures [Quadrilaterals: Parallelogram, Rectangle, Rhombus, Square and Trapezium] Selina ICSE Solutions for Class 9 Maths Chapter 14 Rectilinear Figures [Quadrilaterals: Parallelogram, Rectangle, Rhombus, Square and Trapezium] Exercise 14(A) 1. The sum of the inteior angles of a polygon is four times the sum of its exterior angles. Find the number of sides in the polygon. Solution 1: 2.The angles of a pentagon are in the ratio 4 : 8 : 6 : 4 : 5. Find each angle of the pentagon. Solution 2: 3.One angle of a six-sided polygon is 140 o and the other angles are equal. Find the measure of each equal angle. Solution 3: 4.In a polygon there are 5 right angles and the remaining angles are equal to 195 o each. Find the number of sides in the polygon. Solution 4: In this linear equation n and k must be integer. Therefore to satisfy this equation the minimum value of k must be 6 ...