By definition, the area is given by:

Where,
w: width
l: length
We have two expressions for the length:
Since the length is the same, we equate both expressions:

From here, we clear the value of c:


Then, we have that the width is given by:

Substituting the value of c we have:

Finally, the area is given by:

Answer:
he should order 140 square feet
Answer:
Option a) 
Step-by-step explanation:
we know that
The volume of a cylinder is equal to

we have
Note In this problem the volume is equal to
instead of 
so


substitute in the formula and solve for h

simplify



D = 5/6 sqrt(h)
7 = 5/6 sqrt(h)
42/5 = sqrt(h)
h = (42/5)^2 = 1,764/25 = 70.56
The height of the mast is 70.56 miles
Answer:
Step-by-step explanation:
Since 2 triangle are similar
So sides of both triangle are equal
So 72/X=12/10
X= 72x10/12
=60
X=60 is the answer
Answer:
= 18.857 cm²
Step-by-step explanation:
The area of a segment is given by;
θ/360 × 2πr². where θ is the angle subtended by the arc to the center of the circle and r is the radius of the circle.
θ = 60, and r = 6
Therefore;
Area = 60/360 × 22/7 × 6²
= 18.857 cm²