2c - 5 < -21 - 2c |add 5 to both sides
2c < -16 - 2c |add 2c to both sides
4c < -16 |divide both sides by 4
c < -4
Answer: She should keep the same compass opening, place the compass point back on point M, and draw an arc below the line segment MN.
Step-by-step explanation:
According to the rule of construction of perpendicular bisector, she should draw an arc both side of line segment without changing the opening of the compass.
So, her next step would be to take the third option, i.e. She should keep the same compass opening, place the compass point back on point M, and draw an arc below the line segment MN.
Answer:
A) Measure of an interior angle of polygon = 150°
B) No of sides = 12
C) Sum of all interior angles = 1800°
Step-by-step explanation:
Measure of interior angle of polygon = 180°- measure of exterior angle of polygon
= 180°-30°
= 150°
B.
Answer:
10 years ago
Step-by-step explanation:
Let x be the number of years ago
x years ago,
Sonu's grandmother was 80 - x
Sonu was 20 - x
x years ago,
the grandmother was 7 times as old as Sonu
80 - x = 7(20 - x)
80 - x = 140 - 7x
6x = 60
x = 10
Answer:
A 16 pi in^2
Step-by-step explanation:
The area of a circle is given by
A = pi r^2
We need the radius
r = d/2
r = 8/2 =4
A = pi (4)^2
A = 16 pi
