110698.56 square miles
step-by-step explanation:
multiply 3.8 by 102
387.6
multiply 2.8 by 102
285.6
multiply those two to get
no its the same as every other grade
180°
sum of equilateral triangle=180°
< n=60°
< m=120°°[angle supplementary of equilateral angle]
< m+< r+< x=360°(sum of exterior angle of triangle)