Answer:
The rotational angle of a regular polygon with 72 sides is 5º.
Step-by-step explanation:
The rotational angle (), measured in sexagesimal degrees, of polygon of
sides is the angle of a complete revolution divided by the number of sides (
). That is:
(1)
If we know that , the rotational angle is:
The rotational angle of a regular polygon with 72 sides is 5º.
Answer:
3, 50, 2
Step-by-step explanation:
By multiplying all terms by 5, we are trying to remove the fraction on the left hand side. On the right hand side of the equation, expand the bracket by multiplying 5 to each term in the bracket.
3(n +25)= 5(10) +5()
3(n +25)= 50 +2n
To find the value of n, expand the bracket on the left hand side:
3(n) +3(25)= 50 +2n
3n +75= 50 +2n
Bring all n terms to one side, constants to the other:
3n -2n= 50 -75
n= -25
Answer:
The graph with solution is shown below.
Step-by-step explanation:
We need to find the and
for given equation.
For , substitute
Considering inequality sign as equality and simplifying,
, point is
Similarly,
For , substitute
We get,
, point is
We locate this two points on the graph now and join them.
The joining line will be dotted as the inequality has just 'greater than' symbol. The region above the dotted line is the solution to graph.
