Answer:
Step-by-step explanation:
<u>The perimeter is:</u>
- x + x sides
- 3 + 1 + 4 = top and bottom
<u>Total:</u>
Correct choice is A
Answer:
22 is the answer
Step-by-step explanation:
Answer:
x= 149, second problem 900°
Step-by-step explanation:
in quadrilateral all sides must add to 360 so do 360- given angles
inside angles add to 900° on a heptagon