Answer:
39.7
Step-by-step explanation:
first must calculate the length of AB and BC
AB = 16.43
CB= 12.216
then perimeter : Perimeter of a triangle = sum of all three sides

Answer:
125°
Step-by-step explanation:
Angle NMP and angle LMK are equal as they are vertical angles!
When straight lines intersect one another, the angles are the same.
Is this a real question ?
10(length) by 6.5(width). 6.5×2=13, 13-3=10