Answer:
Part 1) The area of the circle is
Part 2) The circumference of the circle is
Step-by-step explanation:
step 1
The area of a circle is equal to
we have
---> the radius is half the diameter
substitute
step 2
The circumference of a circle is equal to
we have
substitute
Answer:
12
Step-by-step explanation:
Answer:
D
Step-by-step explanation:
The unmarked angle of the triangle is also 40o. The triangle is marked with two equal sides (isosceles).
<2 + 40 + 40 = 180 Combine the left
<2 + 80 = 180 Subtract 80 from both sides
<2 = 180 - 80
<2 = 100 degrees.
That's not the answer. We have to solve for x
<2 = x + 106
100 = x + 106 Subtract 106 from both sides
100 - 106 = x
x = - 6