The sum of the measures of the interior angles of a polygon of n sides is
180(n - 2)
If the polygon is regular, all angles are congruent, and each angle measures
[180(n - 2)]/n
Set the measure of one angle equal to 140, and solve for n, the number of sides.
[180(n - 2)]/n = 140
180(n - 2) = 140n
180n - 360 = 140n
40n = 360
n = 9
The number of sides is 9.
Answer:
7.21 units
Step-by-step explanation:
GIven data
Point 1= (8,3)
x1= 8
y1= 3
Point 2= (2,7)
x2= 2
y2= 7
The expression for the distance between two points is given as
d=√((x_2-x_1)²+(y_2-y_1)²)
substitute
d=√((2-8)²+(7-3)²)
d=√((-6)²+(4)²)
d=√36+16
d=√52
d= 7.21
Hence the distance between the points is 7.21 units
Answer:
121 degrees.
Step-by-step explanation:
If the angle is x degrees then its supplement is 180-x degrees.
So we have the equation:
x = 2(180-x) + 3
x = 360 - 2x + 3
3x = 363
x = 121.
Answer:
A = $1,120 B = $5120
Step-by-step explanation:
1.4/100 = 0.014
0.014 x 4000 = 56
1.4% interest on the $4,000 is $56.
56 x 20 (years) = 1,120
A= $1,120
To get B simply add 1,120 to 4000.
1,120 + 4000 = 5120
B = 5120.
