Answer:
x = 12
Step-by-step explanation:
The diagram shows an equilateral triangle (because all angles are congruent). All sides in equilateral triangle are congruent, so

Solve the equation

Check this value:

Thus, 
Answer:
C. x=42
Step-by-step explanation:
16 + 3x + y = 180
126 + 16 + y = 180
y = 38
16 + 3x + 38 = 180
54 + 3x = 180
3x = 126
x=42
Three times as long of 20 square meters would be 60
you can do 20×3 to get 60.
A. (6,-3) HE
B.(0,-2) MADE
C. (5,4) A
D. (-4,-8)KNOT
E. (-5,-4) IN
F. (-2,4) HIS
G. (1,3) TAIL
H. (4,12) AND
I. (6,0) CALLED
J. (-3,-3) IT
K. (-2,6) A
L. (-1,-8) PIG'S
I am sure about the answers but i not sure if i put them with the right words. Just double check to make sure