False, An example would be an equilateral triangle with 3 sides of 3 inches, and another with three sides of 5 inches. They will be similar but not congruent because their sides differ. because the sides and volumes differ they will not be congruent.
Answer
the one on the opposite side of the 137 is 137. the other part of that is 43 and 43. on the bottom one it is 117 on the obtuse angles and 53 on the acute angles. I hope this helps and doesn't sound crazy. I cannot remember the terms. I learned it a couple months ago.
Step-by-step explanation:
Okay so...
There are 21 groups of 3.
21 x 3 = 63.
63 people are in the room.
