Answer:
perimeter: 48in.
area: 144in.
Step-by-step explanation:
Perimeter: 12+12+12+12= 48
Area: 12 x 12= 144
Move the 21 to the other side and change the sign
-7-21=x
x=-28
hope this helps
Answer:
1. 110°
2. 139°
Step-by-step explanation:
1. 180° in a triangle
180 - 40 - 30 = 110°
2. 180° in a triangle
angles on a straight line add up to 180°
180 - 64 - 75 = 41°
180 - 41 = 139°
Ngl idk but just be a nice person and mark as brainliest please
