Perimeter is a continuous line forming the boundary of a closed geometrical figure. perimeter of a pentagon = AB+BC+CD+DE+EA (that is 5 sided figure)
so my plan is easy but effective, calculate all those distances using those coordinates with the aid of distance formular. then you add those distances algebraically .
Answer:
omg that one is hard but it is 18j-6m
Option 2:
is the right answer
Step-by-step explanation:
Given fraction is:

To solve the fraction, Taking LCM in denominator and numerator

When the numerator and denominator both have fractions, the simplified form is obtained be multiplying the numerator with reciprocal of the denominator. So,

Hence,
Option 2:
is the right answer
Keywords: fractions, simplification
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81-1= 80
80 / 2 = 40
D = 40
So:
40(2) = 81 - 1