Regular pentagon abcde rotates counterclockwise about its center to yield pentagon a'b'c'd'e'. at which angle of rotation does a' coincide with d?

The total internal angle of a pentagon is 360. 360 is derived from the total angle of a circle. Pentagon has 5 sides. Rotating the pentagon counterclockwise, from point A and coincide with point D, it takes 3 turns. Divide 360 by 5. Multiply the quotient by 3. So, you will get 216 degrees.

$25

step-by-step explanation:

25 - 4.50 = 20.5

20.5 / 2 = 10.25

10.25 + 10 = 20.25

20.25 - 12.50 = 7.75

therefore the answer is $25 as shown as the first number.

1. 8

2. 9

3. 20

4. 3

5. 17

6. 2.2

7. 11.25

8. 1

9. 14

10. 2

step-by-step explanation:

thats the first half