Answer:
first one
Step-by-step explanation:
From my research, the image attached supports the problem. Since only the outer curve is to be solved for, the formula for arcs can be used.
s = theta*radius
where s = arc length = outer curve
theta = 70 (pi/180)
radius = 70
s = 70 * (70*pi/180)
s = 85.52 feet
Therefore, the outer curve is 85.52 feet long
$605 / $55 = 11
She will have to sell 11 rings to earn $605.
C) $55 x w = $605
Hope this Helps!!
Answer
Find out the m∠p .
To prove
As in ΔDAB is a right triangle
Apply pythagorean theorem
Hypotenuse ² = Perpendicular ² + Base²
DB² = AB² + AD²
AB = 5 units
AD = 6 units
Put in the above formula
DB² = 5² + 6²
= 25 + 36
= 61

= 7.8 units (approx)
Now in ΔDCB is a right triangle .
By using the trignometric identity .


As DC = 4 units
DB = 7.8 units (approx)
Put all the values in the trignometric identity .


∠p = 59.15 ° (approx)