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Given:
- Surface area of cube = 150 ft²
To Find:
- Volume of cube
Solution:
As here in Question we are given Surface area of cube is 150 sq. feet. So, firstly we have find the side of edge of cube. Let 'a' be the edge of the cube
We know that,
Substituting the required values,
- Edge of the cube is 5 feet
Now,
Hence,
- Volume of the cube is 125 cu. feet
Answer:
Step-by-step explanation:
Assuming that the metal frame is a square metal frame because the length of the side of the metal frame is given.
Given:
Radius of the mirror = 2x unit
Side length of the square metal frame = 12x unit
We need to find the area of the metal frame.
Solution:
First we find the area of the circular mirror, using area formula of the circle.
Where, r = Radius of the object.
Substitute r = 2x in above equation.
Now, we find the area the square, using area formula of the square.
So, the area of the square metal frame is given as
Therefore, the area of the metal frame is .