Answer:
10.2cm
Step-by-step explanation:
Perimeter is the sum of the lengths of all sides.
1st side: 9cm
2nd side: 7.8cm
Perimeter: 27cm
Perimeter = 1st + 2nd +3rd side of a triangle
27cm = 9cm +7.8cm + 3rd side
3rd side = 27cm - 9cm -7.8cm
= 10.2cm
we'd do the same as before on this one as well.
if we take 27.99 to be the 100%, what is 12 off of it in percentage?

Answer:
No
Step-by-step explanation:
The lines arent equal
Answer:
2,160 seconds
Step-by-step explanation:
Answer: the second one
Step-by-step explanation:
The first one is reflection over the x-axis, rotated, and translated. The third one is rotated 90 degrees