Each of the interior angles of a regular polygon is 140o. How many sides has the polygon?

Assessment: JAMB UTME - Mathematics - 1990 Subject: General Mathematics

Question 1 Report

Each of the interior angles of a regular polygon is 140o. How many sides has the polygon?
Answer Details
To find out the number of sides of a regular polygon when given the measure of its interior angles, we can use the formula: Interior angle = (n-2) x 180 / n Where 'n' is the number of sides of the polygon. In this case, we know that each interior angle of the polygon measures 140 degrees. Substituting this value into the formula, we get: 140 = (n-2) x 180 / n Simplifying this equation, we get: 140n = (n-2) x 180 140n = 180n - 360 360 = 40n n = 9 Therefore, the regular polygon has 9 sides. Thus, the correct answer is 9.
Read lesson note on Triangles And Polygons (WAEC)
View Answer

Related Questions

1

Simplify \( \sqrt{27} + \frac{3}{\sqrt{3}} \)
2

Correct 241.34(3 x 10-3)2 to 4 significant figures
3

Three children shared a basket of mangoes in such a way that the first child took \( \frac{1}{4} \) of the mangoes and the second \( \frac{3}{4} \) of the re...
4

The H.C.F. of a2bx + ab2x and a2b - b2 is
5

At what rate would a sum of ₦100.00 deposited for 5 years raise an interest of ₦7.50?
6

Simplify \(4\frac{3}{4} - 6\frac{1}{4}\)
7

Simplify and express in standard form \( \frac{0.00275 \times 0.0064}{0.025 \times 0.08} \)
8

Simplify \( \sqrt{160r^2} + \sqrt{71r^4} + \sqrt{100r^2} \)

Download The App On Google Playstore

Everything you need to excel in your exams

Green Bridge CBT Mobile App
Personalized AI Learning Chat Assistant
200,000+ Exam Questions Across IGCSE, JAMB, WAEC & NECO
Over 3,900 Lesson Notes
Offline Support - Learn Anytime, Anywhere
Green Bridge Timetable
Literature Summaries & Potential Questions
Track Your Performance & Progress
In-depth Explanations for Comprehensive Learning