4:5 because a quadrilateral has 4 sides and a pentagon has 5 sides
Answer:
5.264 * 10^4
Step-by-step explanation:
We put a decimal point to the right of the number, so
52640.
Then we move it to the left until we get a number that is between 1 and 10.
5.2640
This was four hops to the left.
We can remove the trailing 0, and write
5.264 * 10^4
10^4 because of the four hops
1.06418
The same as of sec 20 degrees in radians to obtain 20 degrees in radian multiply 20° by / 180° = 1/9
