It's a square. A parallelogram with four equal sides is a square.
Answer:
3x+3
Step-by-step explanation:
Perimeter
x+x+6+x-3=3x+3
Had to do this since it’s kinda hard to type it out
Step-by-step explanation:
complementry
since the angle 1 and 2 both measures 90⁰
Multiply each side by 5
v = 45