Ihave 150 i share one third how much did i share

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

What is the perimeter of an equilateral triangle if each side is (x+3)?

Radials are weird[tex](14 \sqrt{6}) ^{2} [/tex]whats the answer and how do i solve pls