Question

Q3) Write
(5x2=10
a) the sum of all angles of a triangle
b) the sum of all angles of a quadrilateral
c) the sum of all external angles of a polygon
d) the sum of all angles of a regular hexagon​

Answer 1

Answer:

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Step-by-step explanation:

Number of sides in hexagon =6

Sum of the interior angles of a polygon=(n−2)π

n(Interior Angle)=(n−2)π

⇒ Interior Angle =

6

4

π

Interior Angle =120

∘

Exterior Angle =180−Interior Angle

⇒ Exterior angle =60

∘

Sum of Exterior angle =6× Exterior Angle =360

∘

Answer 2

Step-by-step explanation:

the sum of all angles of a triangle = 180°

the sum of all angles of a quadrilateral