Sum of exterior angles of any polygon is 360 degrees.
<span>Each exterior angle of a regular polygon = 360/n where n is the number of sides. </span>
<span>So, n = 360/20 = 18. Your answer is D
Hope this helps.</span>
Answer:
The ladder reaches a height of 6 m.
Step-by-step explanation:
Given that,
Height of the ladder, H = 6.5 m
The foot of the ladder is 2.5 m from the foot of the wall.
We need to find the height does the ladder reach. If we consider a triangle in which hypotenuse is 6.5 m, foot of the ladder is 2.5 m then we need to find the height of the ladder i.e.
The ladder reaches a height of 6 m.
Answer:
Step-by-step explanation:
Using the Theorem of the side of a triangle:
And using the Height Theorem:
y =
And by the Pythagorean Therorem:
z =
No 5.75 is greater than 5.55
Answer:
Step-by-step explanation:
The line has a slope of -1/3. For lines to be perpendicular there product must equal negative 1
m1(m2)=-1
-m/3=-1
m=3
So we know our line has a slope of three so
y=3x+b, we can solve for the y intercept, b, using point (-2,8)
8=3(-2)+b
8=-6+b
b=14, so our line is
y=3x+14