Answer:
Step-by-step explanation:
The figure shows a circle with radius r сm. Another circle is drawn inside the circle such that its diameter is the radius of the original ...
answer
I think the answer would be 78.5 by Isaac Torres
Answer:
Step-by-step explanation:
Rewrite our equation with parts separated
-5 - 
- 3 - 
Solve the whole number parts
-5 - 3 = -8
Solving the fraction parts and Find the LCD
LCD = 4
- 
= 
Simplify
Combine the whole and fraction parts
8 - 1 - 
=
Mark as Brainllest
Answer: The height of the cylinder is 8 feet.
Step-by-step explanation:
The formula for determining the area of a circle is expressed as
Area = πr²
The area of one of the bases is 78.5 square feet. This means that
78.5 = 3.14 × r²
r² = 78.5/3.14 = 25
r = √25 = 5
The formula for determining the surface area of a cylinder is expressed as
Surface area = 2πr² + 2πrh
The surface area of a cylinder is 408.2 square feet. Therefore,
408.2 = 2 × 3.14 × 5² + 2× 3.14 × 5 × h
408.2 = 157 + 31.4h
31.4h = 408.2 - 157
31.4h = 251.2
h = 251.2/31.4
h = 8 feet
So we should first start off by checking for the ones with the same area, which is 72sq cm
80×90=7200sq cm so A is incorrect
8×10=80sq cm so B is incorrect
3×24=72sq cm so, so far C is correct
4×14=56sq cm so D is incorrect
And because all are incorrect except C
Then C is the correct answer, just to be sure, we will check the perimeter
24+24=48
48+3=51
51+3= 54
So the perimeter is different, making C the correct answer
