This is 6C2
= 6!
-------- = 6*5 / 2*1 = 15
2! 4!
Answer:
not sure if u saw the comment but
7 and 8 are congruent, and 8 is congruent to 10
that maybe the rest of the answer
Answer:
Solution given;
l=4.5ft
b=2ft
h=2ft
now
volume=l*b*h=4.5*2*2=18ft³
is a required volume.
Now
total surface area =2(lb+lh+bh)
=2(4.5*2+4.5*2+2*2)=44ft²
is a total surface area.
(15, -8) :)
From C to midpoint you do (+10, -7), so you have to do that again to get to D
