If 1 is added to the numerator and denominator of a fraction, the value obtained is 45.If 5 is subtracted from its numerator and from its denominator, the resulting value is 12.Find the fraction.

180°

step-by-step explanation:

sum of equilateral triangle=180°

< n=60°

< m=120°°[angle supplementary of equilateral angle]

< m+< r+< x=360°(sum of exterior angle of triangle)

for this case we have that by definition, the volume of a cylinder is given by:

where:

r: it's the radio

h: it's the height

we have as data that:

substituting:

so, the cylinder volume is

option d

your answer is option c.