Answer:
4
Step-by-step explanation:
4 is the highest number that will divide evenly into 28 and 40.
28 divided by 4 is 7, 40 divided by 4 is 10.
Divide by 3 then subtract however many you have to
Since the two lines are parallel, the angle labeled 130 is congruent to the angle labeled x+ 136 so you can set them equal to each other
130 = x + 136
subtract 136 from both sides
x = -6
Answer:
C. 16 cm
Step-by-step explanation:
Top side: 2 + 4 = 6
Right side: 1 + 1 = 2
Bottom: 2 + 4 = 6
Left side: 1 + 1 = 2
6+6+2+2 = 16 cm.