A disc has a diameter of 23 cm the inner hole in the disc has a radius of 2 cm find the circumference for both the inner hole and the entire disc round to the nearest whole centimeter

i think it is everything has to equal 180 so, if i correct 4=c. 6=d. 8=a. 7=b. and the last question would be c. because they are parallel lines and they are congruent.

step-by-step explanation:

the reason everything has to equal to 180 is because that is how it works. i'm guessing that is its rule. 4 and 8 are congruent and parallel so, that would be 30+30 because they have the same number. it would equal 60. 6 and 7 are congruent and parallel so, that would be 30+30 because they have the same number. it would equal 60. 60+60 is 180. so, now you have your answer

no i do not : ( what is it?

step-by-step explanation:

infinity is the answer

answe: it will take 4.5 hours for naomi and clair to paint an equal number of square feet

hope i

-lavira : )