Answer:
13 units
Step-by-step explanation:

=
=
=
=13 units
If l || m than 8x+20=11x-31
3x=51
x=17
The angles are obtuse angles.
Answer: The perimeter is 20 cm
Step-by-step explanation: The top and bottom are same length, so 6+6, and the sides are the same length, so 4+4 don’t forget it’s cm and it becomes 20 cm.
PERIMITER = ADDING ALL SIDES
AREA = MULTIPLYING
Answer:
Both are correct because S is greater than P by 4 and P is smaller than S by 1/4.
Step-by-step explanation:
The question is asking which of the following does not have side that are parallel. So which of them have lines that would never touch if they were never ending lines.