Answer:
50.29 square inches.
Step-by-step explanation:
Given:
Sara is cutting circles out of pieces of cardboard.
She uses a rectangular piece of cardboard that is 8 inches by 10 inches.
Question asked:
What is the area of the largest circle she could make?
Solution:
Here given length of piece of cardboard is 10 inches and breadth is 8 inches, to draw the largest circle, we have to draw the circle touching the boundary of the breadth of the rectangular cardboard and hence breadth will be considered as diameter and it will be the maximum diameter of the circle.
Now, we will find the area of the largest circle by taking breadth as the maximum possible diameter:
Breadth = Diameter = 8 inches ( given )
Radius = half of diameter ,
Therefore, area of the largest circle she could make is 50.29 square inches.
Answer: y = -x + 7
Step-by-step explanation:
The slope is 
, so we know the equation is of the form 
.
Substituting in the coordinates (1,6) to find b,
Thus, the equation is y = -x + 7
Answer: CSA = 22.9m^2
Step-by-step explanation:
The cross sectional area of the cylinder perpendicular to the length, is the area of the circular base or top of the cylinder. It can be derived mathematically using the area of a circle.
Cross sectional area = πr^2
Where r is the radius of the cylinder
r = 2.70m
CSA = π×2.70^2
CSA = 22.9m^2
Answer:
17
Step-by-step explanation:
This flight makes a right triangle
The sides are 8 and 15. The hypotenuse isnt know and that is the answer.
8^2 + 15^2 = c^2
c^2 = 289
c = 17
To work out how many miles the distance from the airport to the beach, we can use 1km ≈ 0.62 miles
To get from 20km from 1km, we multiply by 20
If we do the same to 0.62
0.62 x 20 = 12.4 miles
Next step is to add this on to the 500 miles they travelled by plane
500 + 12.4 = 512.4 miles
