A tetrahedron is a shape made out of four triangular faces, and it has a total of <span>six edges
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1. Which polygon or polygons are regular?
A regular polygon is a polygon that is equiangular (all angles are equal in measure) and equilateral (all sides have the same length).
Therefore your answer is:
A. equilateral triangle
C. square
2. Which polygon is always irregular?
traingle - NOT (equilateral triangle)
trapezoid - YES
square - NOT
hexagon - NOT (regular hexagon)
Answer:
..
Step-by-step explanation:
Answer: 11.2 because I know trust me. I did a worksheet with this same question and got 11.2 and it was correct.
