Step-by-step explanation:
First, you'd get the area of the circle, then multiply it by two (there's two ends to a cylinder)
so (pi)(R^2)
If 8 is the diameter, then 4 is the radius (r=1/2d)
3.14{pi}*16{4 squared}+=50.27
(50.27*2)= 100.54
Now, we need to find the area of the side of the cylinder. We have the given height of 16.8, and now we need to find the length. In order to do that, we must find the perimeter/diameter of the circle with the formula of Pi*Diameter.
if the diameter of the circle is 8, then 3.14*8=25.12.
25.12*16.8=422.016
now we need to add the area of the circles to get total surface area.
100.54+422.016= 522.556cm^2
I hope this helps!
Answer:
98 yd²
Step-by-step explanation:
From the diagram attached, The polygon is a square with the distance from the edge of the square to the center of the square = 7 yd.
The distance from the edge of the square to the center of the square is half of the diagonal. Therefore length of the diagonal = (7 yd * 2) = 14 yd
The diagonal and two sides of the triangle form a right angle triangle. Let the side of the triangle be a. Therefore the hypotenuse is the diagonal, using Pythagoras theorem:
a² + a² = 14²
2a² = 196
a² = 98
a = √98 = 7√2
The length of the side of the triangle = a = 7√2 yd
The area of the rectangle = length × length = 7√2 × 7√2 = 98 yd²
25 + 60 = $85. 85/200 and x/100. 100 times 85= 8500. Divide 8500 by 200= 42.5 Hope this helps!
6 marbles, since (2/3)*9 is 6.
Answer:
8
Step-by-step explanation:
x=7
7+1=8