Suppose that circles a and b have a central angle measuring 40°. additionally, circle a has a radius of 5 2 ft and the radius of circle b is 9 2 ft. if the measure of the sector for circle a is 25 36 π ft2, what is the measure of the sector for circle b? a) 2 9 π ft2 b) 4 9 π ft2 c) 9 4 π ft2 d) 9 2 π ft2

What is the next step in the given proof? choose the most logical approach. a. statement: m 1 + m 2 + 2(m 3) = 180° reason: angle addition b. statement: m 1 + m 3 = m 2 + m 3 reason: transitive property of equality c. statement: m 1 = m 2 reason: subtraction property of equality d. statement: m 1 + m 2 = m 2 + m 3 reason: substitution property of equality e. statement: 2(m 1) = m 2 + m 3 reason: substitution property of equality