Sum/Difference of 2 monomials is (in simplest terms) a monomial when the 2 monomials are 'like terms
I worked backwards to solve this question, my explanation and working out is
in the picture. If you need any clarification, just ask in the comments.
The figures that can have a triangle as a two-dimensional cross section are (4) I, III, and IV, only
<h3>How to determine the figures?</h3>
The cross-section of three-dimensional figures are as a result of slicing the figure along its axis.
- When the cube is sliced with its plane, it gives a triangle face
- When a cone is sliced vertically, it gives a triangle face
- One of the faces of a square pyramid is a triangle; so it has a triangle face
Hence, the figures that can have a triangle as a two-dimensional cross section are (4) I, III, and IV, only
Read more about cross section at:
brainly.com/question/3603397
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Since the legs are the same length, we know that the remaining two angles must be the same.
120+2x=180
2x=60
x=30
Final answer: x=30 degrees
