Answer:
Step-by-step explanation:
The interior angle of a polygon is given by
(n-2)×180
or for regular polygon n × each interior angle.
Therefore since it is a regular polygon
Given than interior angle is 144
Then,
(n-2)×180=n× interior angle
180n-360=144n
180n-144n=360
36n=360
Then, n=360/36
n=10
Then the polygon has 10_sides which is a decagon.
4.31 kilometer
..........................................
5= 12+3/4x, identify x
-7=3/4x, isolate x
-7(4/3)=x, -28/3=x
:)
you put the equation in slope and intercept form by making y the subject of the formula
i.e
y = -2x + 2
-2 is the slope and 2 is the intercept