How do u do this without a calculator

(2.3x10^12)divided(4.6x10^3)

step-by-step explanation:

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)

if the angular bisector of an triangle bisects the opposite side, prove that the other two sides are equal.