Question

In pentagon ABCDF, the measures of angle A and angle B are both One hundred degrees The measures of angle C and angle D are both One hundred fifteen degrees What is the measure of angle F? seventy degrees one hundred ten degrees four hundred seventy degrees three hundred twenty five degrees

Answer 1

could you draw it?

Answer 2

Are your options:
A. 70º seventy degrees
B. 110º one hundred ten degrees
C. 470º four hundred seventy degrees
D. 325º three hundred twenty five degrees

Answer 3

For a pentagon:
S(i) = 180x(5-2) = 180x3 = 540 degrees

Answer 4

yes

Answer 5

Oh I see you know they sum up to 540 degrees. That is the key.

Answer 6

Sum up what you have given by the problem.

Answer 7

Really you just need to subtract now.
\[540−(100+100+115+115)=? \]\[540-200-230= 110\] So your answer is B!