Answer:
a. 125 degrees
b. 62 degrees
c. 58 degrees
d. 130 degrees
Step-by-step explanation:
I assume these are the inner angles of the polygons.
remember, for a polygon with n sides we can fully split it into n-2 triangles without overlap.
each of these triangles has an angle sum of 180 degrees.
to get the total inner angle sum of the polygon, we need to multiply 180 by (n-2) (= the number of triangles).
out of that total we can then calculate the size of the missing angle.
a. 6 sides, therefore 4 triangles
4×180 = 720 degrees
the missing angle is
angle = 720 - 88 - 152 - 125 - 105 - 125 = 125
b. 5 sides, 3 triangles
3×180 = 540 degrees
angle = 540 - 109 - 111 - 140 - 118 = 62
c. 4 sides, 2 triangles
2×180 = 360
angle = 360 - 60 - 142 - 100 = 58
d. 7 sides, 5 triangles
5×180 = 900
angle = 900 - 90 - 120 - 140 - 150 - 120 - 150 = 130
Answer:
21 feet and 7 inches
Step-by-step explanation:
I multiplied 6 by 12 twice to find out how many inches she needs for the sides of the ladder which got me 154 then i multiplied 7 by 15 which got me 105 then i added the two products together and got 259 then i divided 259 by 12 to find out how many feet were in 259 inches which got me 21 with a reminder of 7
Therefore, the answer is 21 feet and 7 inches
Answer:x + 12y = 4
9x + y = 10
-9x + y = -7
Step-by-step explanation:idk for sure tho man
Answer:
The answer is B.) 3
Step-by-step explanation:
