Oh, this is easy. For any prism, you find the surface area by finding the are of all the sides. I will post all surface area formulas here, for reference
Cube:
Surface area = 6 × a2
Right circular cylinder:
Surface area = 2 × pi × r2 + 2 × pi × r × h
pi = 3.14
h is the height
r is the radius
Rectangular prism:
Surface area = 2 × l × w + 2 × l × h + 2 × w × h
l is the length
w is the width
h is the height
Sphere:
Surface area = 4 × pi × r2
pi = 3.14
r is the radius
Right circular cone:
Surface area = pi × r2 + pi × r ×( √(h2 + r2))
pi = 3.14
r is the radius
h is the height
l is the slant height
Right square pyramid:
Surface area = s2 + 2 × s × l
s is the length of the base
h is the height
l is the slant height
2 1/2 is in mixed fraction. So let's first make it into improper fraction.
(2*2 + 1) / 2 = 5/2
5/2 of 7.25 = (5*7.25) / 2 = 18.125
in short, 18.125 is the answer
Answer:
200 ducks total in the pond
Step-by-step explanation:
2% of x equals 4
0.02x = 4
x = 200
Easy. If 1 In. = 2.54 Cm. then the equation would be 47 * 2.54 = 119.38.
Answer:
26.08 meters (rounded to 2 decimal places)
Step-by-step explanation:
This diagonal creates a right triangle with one leg 14m and another leg 22 m. We can use pythagorean theorem to figure out the diagonal (hypotenuse of the right triangle).
Pythagorean theorem tells us ![hypotenuse^2=OneLeg^2+OtherLeg^2\\hypotenuse^2=14^{2}+22^{2}\\hypotenuse^2=680\\hypotenuse=\sqrt{680} =26.08m](https://tex.z-dn.net/?f=hypotenuse%5E2%3DOneLeg%5E2%2BOtherLeg%5E2%5C%5Chypotenuse%5E2%3D14%5E%7B2%7D%2B22%5E%7B2%7D%5C%5Chypotenuse%5E2%3D680%5C%5Chypotenuse%3D%5Csqrt%7B680%7D%20%3D26.08m)
The fence needs to be 26.08 meters (rounded to 2 decimal places)