Four and five are finding exterior angles while seven and eight are finding interior.
exterior angles= 360/n(# of angles)
interior angles= 180*(n-2)
Answer:
None
Step-by-step explanation:
65-14=51
51*8.5=433.5% of his hair gone.
None left
Step-by-step explanation:
1/2 the fourth answer :)
Answer
7. 30
8. 54
Step-by-step explanation:
For 7 do 2x+3x=90 because it is a right angle
then solve for x and get 15
to get the angle you are looking for multiply 2 by 15
and get the answer 30
For 8 to find the value of x you would need to...
add (4x+6) + (11x-6)= 180 because 180 is a straight angle.
Then simply solve for x and get 15x=180 which equals 12
The to get the angle you plug it in to (4x+6) and get the answer 54