Given a regular 20-gon ( a 20 sided polygon )
The measure of each interior angle will be given by:
where n is the number of sides
Substitute with n = 20
So, the measure of each interior angle =
The sum of exterior angles = 360
So, the measure of each exterior angle = 360/20 = 18
Answer:
x=4
Step-by-step explanation:
4x + 7y= 51
We replace y by 5 and determine x.
4x+7×5=51
4x+35=51
4x=51-35
4x=16
x=4
1 : 15 - scale
150 / 15 x 1 = 10
120 / 15 x 1 = 8
Dimensions of the drawings = 10 by 8
It takes you 11.7 minutes to read the science book pages and 19.6 minutes to read the play pages. In total, you spent 31.3 minutes reading.
