The answer is 3 cm. You just have to add the sides you know (6 and 8) and subtract that from the perimeter (18)
-162
Because 9 x 2 = 18
18 - 180 = -162
2.5 is an equivalent decimal because you can add infinity zeros after the last number in a decimal and it will still be the same.
&
2.500 would be an equivalent decimal because you can add infinity zeros after the last number in a decimal and it will still be the same.
2.5, 2.500, 2.5000, 2.50000, etc..
Answer:
See attached
Step-by-step explanation:
The answers added on the picture
