72 inches.
<span>72/6=12inch sixths </span>
<span>each sixth is cut into a third </span>
<span>12/3=4 inches </span>
<span>each of these eighteenths (6*3=18) have a length of four inches. </span>
<span>Check. 18*4 should equal 72. You have 18 pieces, each four inches long.
Got it all?</span>
Answer:
the answer is 87
Step-by-step explanation:
Answer:
Step-by-step explanation:
Given that,
The arc length is four times the radius
Let he radius be 'r'
Then, the arc length be 's'
The arc of a sector can be calculated using
s=θ/360 × 2πr
Then, given that s=4r
So, 4r = θ × 2πr / 360
Divide both side r
4 = θ × 2π/360
Then, make θ subject of formula
θ × 2π = 360 × 4
θ = 360 × 4 / 2π
θ = 720 / π
So, area of the sector can be determine using
A = θ / 360 × πr²
Since r = ¼s
Then,
A = (θ/360) × π × (¼s)²
A = (θ/360) × π × (s²/16)
A = θ × π × s² / 360 × 16
Since θ = 720 / π
A = (720/π) × π × s² / 360 × 16
A = 720 × π × s² / 360 × 16 × π
A = s² / 8
Then,
s² = 8A
Then,
s= √(8A)
s = 2 √2•A
You just have to round the hundreds place and leave the rest the same so it is 3200.5641
Answer:
x
=
−
2
±
√
10
3
Step-by-step explanation:
