We know the perimeter is the total sum of all sides of the shape, we can use this to form an equation: the perimeter=1st side + 2nd side + 3rd side + 4th side 39a-7=9a+(5a+1)+(17a-6)+4th side.
Collect like terms to get 39a-7=31a-5+4th side
If we move everything but the 4th side over to the left we can solve
C. 8a-2=4th side is the correct answer
-(-3)power (n )
n is 1;2;3;4;....
12, 18 , 24, 30, 36, 42….
Answer:
Draw a same side int. angle with s/2 as the perp. bisector
Step-by-step explanation:
