answer:
perimeter- 12 units
area- 4.5 units
step-by-step explanation:
perimeter-
p=4a
=4*3
=12
area-
a=pg/2
=3*3/2
=4.5
good luck :)
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<h3>
Answer: 20 sides</h3>
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Work Shown:
x = exterior angle
9x = interior angle
interior + exterior = 180
9x+x = 180
10x = 180
x = 180/10
x = 18
n = number of sides
n = 360/x
n = 360/18
n = 20
There are <u>20</u> sides to the regular polygon.
Side notes:
- The formula to determine n only works for regular polygons.
- A polygon with 20 sides is known as an icosagon.
- Any pair of adjacent interior and exterior angles are supplementary. They add to 180 degrees.
Answer:
Planet Distance from Sun (in Km) Distance in scientific notation
Mercury 57,909,000 Km 5.7909 X 10^3
Earth 150.33 Million Km 1.50.33 X 10^6
Mars 2.10.06 Million Km 2.1006 X 10^6
Jupiter 768.26 Million Km 7.6826 X 10^6
Neptune 4.4763 Billion Km 4.4763 X 10^9
Uranus 2.5957 Billion Km 2.5957 X 10^9
Saturn 1.4936 Billion Km 1.4936 X 10^9
Venus 107.95 Million Km 1.0795 X 10^6
Step-by-step explanation:
The coordinates of C are (3, 2)
The coordinates of D are (4, 1)
%error=(6.5g/mol - 7g/mol)/(7g/mol) * 100= 7.14% error
