The basic definition of a perimeter is the boundary line of an object. For shapes and figures, this is basically the sum of the outermost sides that define the object. Since an octagon has eight sides, with each side measuring 12m, the perimeter can be obtained by multiplying 12 m by 8 sides, or in equation form:
P = 8(12)
Among the choices, this is letter B.
Yes, it does apply when you add negative integers
Answer:
-1000
Step-by-step explanation:
Since there's a negative in the equation, the answer is also a negative. This is also like 20 x 50, but you have to put a negative at the back.
She should have subtracted 12 instead of adding.
x+12=31
-12=-12
x=19
A is the final answer! Hope i helped :)