Activity 6
The inner angle of a regular polygon is 144º.
a) What is the measure of outer angle at a vertex?
b) What is the sum of measures of outer angles ?
c) How many sides does it have ?
The inner angle of the polygon is 144º.
At a vertex
Measure of inner angle + Measure of outer angle = ____
Measure of outer angle = _____-144
Sum of measures of outer angles=____
Number of sides=____
=____
Answer:
a) 36°
b) 360°
c) 10
Measure of inner angle + Measure of outer angle = 180°
Measure of outer angle = 180 – 144 (ans: 36)
Sum of measures of outer angles = 360°
Number of sides = 360÷36 = 10
Step-by-step explanation:
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Answer:
a) 36°
b) 360°
c) 10sides
d) 180°
e) 180-144=36°
f) 360÷36=10
Step-by-step explanation:
a) 180-144=36°
b) sum of outer angles of all polygons is 360