Find the sum of the interior angle measures of a pentagon
1 answer:
Remember that the formula for the sum of the interior angles within a regular polygon is:
, where 
is the number of sides that the polygon has
Thus, the sum of the interior angles of a pentagon is 
.
The answer is 540 degrees.
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Answer:
let cp be x
sp= 115x/100 ---(when 15%gain)
sp = 88x/100------(when 12% loss
according to question
115x/100 - 88x/100 = 81
or, (115x-88x)= 8100
or, 27x = 8100
or, x= 8100/27
x = 300
hence cp is RS 300
