Answer:
- 5/13
Step-by-step explanation:
tans = 5/12 = height/base
Using Pythagoras, hypotenuse = √12² + 5² = 13
Therefore coss had to be 12/13
But since cos s < 0, cos s = - 12/13
Thus,
tanA = sinA/cosA
tanA cosA = sinA
(5/12)(- 12/13) = sinA
- 5/13 = sinA
we are given
exterior angle is 18
so,
now, we can use formula
number of sides of regular polygon = 360/(exterior angle)
so, we get
so, number sides is 20..........Answer
208/16 = 13 yards per part
13-4 = 9 yards of unpainted strip per strip
9*16 = 144 of unpainted strips
Answer:
337.5
Step-by-step explanation:
4 1/2*5*3 3/4
The answer is the second one