The sum of angles of a triangle is given by the expression (2a + b)o while that of a quadrilateral is given by (13a - b)o. Calculate the values of a and b.

      

The sum of angles of a triangle is given by the expression (2a + b)o while that of a quadrilateral is given by (13a - b)o. Calculate the values of a and b.

  

Answers


John
The sum of angles in a triangle is

180o while the sum of angles in a

quadrilateral is 360o

2a + b = 180o

13a - b = 360o + (add)

15a = 540;

using 2a + b = 180

72 + b = 180;

b = 108o
johnmulu answered the question on June 8, 2017 at 11:48


Next: Beja bought 15 shirts and 8 trousers for Shs. 11, 250. His brother Jack bought 20% less similar shirts and 25% more similar trousers, from the same shop for Shs. 11, 700. Find the cost od a shirt.
Previous: There are unspecified number of cows and hens in a den. If there are a total of 30 heads and 80 legs in the den, find the number of cows and hens in the den.

View More Mathematics Questions and Answers | Return to Questions Index


Exams With Marking Schemes

Related Questions