1. Alternate exterior angles
So, C
2.
180 = 76 + 2x
104 = 2x
52 = x
So, B
4.
4a. No
4b. Yes
4c. No
4d. Yes
5.
180 = 35 + 35 + 2x
180 = 70 + 2x
110 = 2x
55 = x
So, C.
7.
12/8 = 30/y
Cross multiply
12y = 240
y = 20
So, C
8. Alternate interior angles
So, A
9.
A C and D
Answer:
8+10+8+10=36+ 2 x 3.14 x radium/2
Step-by-step explanation:
I think it’s 20 but I may be wrong
2 An angle in a regualr quadrilateral = 90 degrees
3. if exterior angle = 40 degrees then the number of sides in the plygon
= 360/40 = 9 sides
So its a nonagon.
Answer:
26
Step-by-step explanation:
