Given the triangle below, what is mc, rounded to the nearest tenth?

41.4

Step-by-step explanation: Since this isn't a right triangle and you're given side side side (SSS), you need the Law of Cosines.

cos(c) = (a^2 + b^2 - c^2)/2ab

(100+144-64)/2*12*10

cos(c) = 180/240

multiply both sides of the equation by cos^-1 to get ride of cos:

cos^-1(cos(c)) = cos^-1(180/240)

c = 41.4

15 units use socratic

step-by-step explanation: 15 units

step-by-step explanation:

there is a formula i can give you:

it is r^2*n*sin(360/n) divided by 2 where r represents the "radius" and n is the number of sides.

plug them in:

(10sqrt(3))^2*6*sin(360/6) divided by 2

100*3*6*sin(60) divided by 2

900*sin(60)

900*sqrt(3)/2

450*sqrt(3)

approx is 779.4 cm^2