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
4x + 2y = 0
2y = -4x
y = -2x...the slope here is -2
the above line ^^ is parallel to y = -2x + 3.....because parallel lines will have the same slope
Answer:
The exact value of cot(∅) is 2.5
Step-by-step explanation:
The picture of the question in the attached figure
we know that
An isosceles triangle has two equal sides and two equal interior angles
In his problem


In the right triangle ABD
---> adjacent side angle ∅ divided by the opposite side angle ∅
we have
The base of the isosceles triangle is five times the height
so



substitute

Answer:
Step-by-step explanation:
H
Answer:
1400 ft^3
Step-by-step explanation:
Volume of a box is given by
V = l*w*h
= 10*5*28
=1400 ft^3