CLEAR
Toprankers-Info

+91 7676564400

Mobile App

Get it on Google Play
Discussions
Select Date
Tags:

Articles

Discussions
Submit Discussion
manoj046

· started a discussion

· 1 Months ago

question. 27 (Question: 107876.0 )

Its answer should be 21.

solution..
180(n-2)= (5*172)+ (n-5)*160
after solving..
n=21

Question:

In a polygon, the each angle of 5 sides is 172° and the other angles are 160° each. Find the number of sides of the polygon.


Options:
A) 18
B) 23
C) 20
D) 21
Solution:

5*172 = 860

860 + (n-5)*160 = (n-2)*180

 860 + 160n - 800 = 180n - 360

420 = 20n

n = 21 sides

kanhaiya jha

· commented

· 1 Months ago

Hi, 21 is correct...

5*172 = 860
860 + (n-5)*160 = (n-2)*180
860 + 160n - 800 = 180n - 360
420 = 20n
n = 21 sides

MD Abid Junaid

· commented

· 1 Months ago

Yes, This is Correct solution

Abhishek Shrivastava

· commented

· 1 Months ago

Yet to be approved!
-logo
We at aim to provide most comprehensive content & test for practice which is carefully divided into various chapters and topics to help you focus on your weak areas.Our Practice mock test gives you unmatched analytics to help you realize your strong areas,time management and improvement areas.Our Short & Crisp notes on each topic will help you to quickly revise the topic along with the tips & tricks of the exams.
More About
-Info
-Info

Mobile App

Get it on Google Play
About Us Campus Ambassador Careers Contact Us Refund Policy

All Rights Reserved Top Rankers

User Policy
Disclaimer
Terms & Conditions