The statement that is untrue about lines of symmetry is C. A line of symmetry is a vertical line through the middle of a figure.
While this is one example of a line of symmetry, the line doesn’t have to be vertical every time. As stated in answer choice B, lines of symmetry can come from any direction, as long as it evenly splits the figure. This can be vertical, horizontal, and/or diagonal.
I hope this helps. :)
Well, if the cement block is going to get painted, then you would have to find the surface area of that rectangular solid.
Multiply 4.5 by 7.25 to get the area of one side, then multiply that answer by 2 to get the area of the side opposite the given side. You'd end up with the area for two congruent sides.
Next, multiply 4.5 by 6.5. Multiply the sum by 2, since there is another congruent side opposite that.
Lastly, multiply 6.5 and 7.25, since they are the only numbers left to multiply anyway. Multiply the product by 2.
Your work should look somewhat like this:
4.5 x 7.25 = 32.625 (x2)
4.5 x 6.5 = 29.25 (x2)
6.5 x 7.25 = 47.125 (x2)
32.625 + 29.25 + 47.125 = 109
Multiply 109 by 2 (there are 6 sides to this prism; 3 are listed, so multiply 2 to get the area of the other 3)
FINAL ANSWER: 218 feet squared
Combine like terms 14n+2k
