Well, one line is equal to 180
Starting with the bottom half, there is a right angle so 180-90 is 90
then take the degree that is given to you(47) and subtract it 90-47 is 43
so angle 4 is 43 <span>°
given that,andgle 3 is 90</span><span>° because its equal to the right triangle on the bottom
</span>2 is equal to 4(43<span>° )
</span>which leaves 1 to be 47<span>°
</span>
Hope this helps
Your answer is B. hope this helps
The circumference of the circle with radius is given by . When ,
Correct choice is (C).