HCU MCA 2013 Paper

Question : 49 of 75

Marks: +1, -0

The sum or the interior angles of a polygon is equal to 86 right angles. Then, the number of sides of that polygon is

Solution:

(d) Let n be number of sides of the polygon by condition;
Now, sum of all interior angles = 86 x right angles.
⇒(2n - 4 ) × 90° = 86 × 90°
⇒

\;\;\;\;\;\;\;\;

(2n - 4 ) = 86
⇒

\;\;\;\;\;\;\;\;\;\;\;\;\;\;\;\;

2n = 90
∴

\;\;\;\;\;\;\;\;\;\;\;\;\;\;\;\;\;\;\;

n = 45

Go to Question:

Prev Question

Next Question