Answer:
80.78°
Step-by-step explanation:
When the 30 cm long string will be bent in the form of a sector it's two sides will be radii of the sector and lower part be the arc. Length of the arc can be found as given below.
Length of the string = 30 cm
radius of sector (r)= 8.8 cm
Length of the arc (l) = 30 - 2*8.8 = 30 - 17.6 = 12.4 cm
Let the sector makes angle at the centre of the circle.
Formula for length of arc of a sector is given as:
Plugging the values of l and r in the above formula, we find:
Answer: 31
Step-by-step explanation:
59 is vertically opposite to 59 in the bottom right angles of the triangle so that angle is also 59
Then the angle in the bottom left is 90/ right angle
90+59=149
180-149=31
pretty sure its the on on the very bottom left but not sure
The correct answer is letter C, (3,5)
When you substitute this ordered pair on the equations, you would found out that it is the correct one