Answer:
Those angles are in opposite either in vertical or horizontal. They are opposite angles
Multiply every coordinate by the scale factor 3
(-1,2,0) ----> (-3,6,0) is the answer
Step-by-step explanation:
Answer:
42 m
Step-by-step explanation:
l+1 * (b+1) = lb+22
lb+b+l+1 = lb+22
l+b=21
perimeter = 42 m
Clarify the shape of the poster and possible lines for the sections.