Check the picture below.
notice the sides, now, on the second triangle, side 6 slants a bit more to fit in 13, on the third triangle, side 6 slants even further to fit 13 in, now, if 6 were to slant completely, it'll make a flat-line with side 5, and there will be a triangle no more.
but even if side 6 would stretch to a flat-line, 5+6 is just 11, whilst side 13 is longer than that, so no dice.
(16+5)4÷2=42
21×4÷2=42
84÷2=42
42=42
that is were to but you answer
C, always go with supervisors
Answer:
4,800
Step-by-step explanation: 6 times 5 times 8 times 20=4800 :D