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Congruent
The same shape and size.
Two shapes are congruent when you can Turn, Flip and/or Slide one so it fits exactly on the other.
In this example the shapes are congruent (you only need to flip one over and move it a little).
Angles are congruent when they are the same size (in degrees or radians).
Sides are congruent when they are the same length.
I hope this helped I've only done part A
Answer:
137°
Step-by-step explanation:
ACD = ACB+BCD
ACD= 75°+62°= 137°
Answer:
ΔABC ~ ΔDEF
Step-by-step explanation:
If the given triangles ΔABC and ΔDEF are similar,
Their corresponding sides will be proportional.
By substituting the measures of the given sides,
2 = 2 = 2
Since, corresponding sides of both the triangles are proportional, both the triangles will be similar.
ΔABC ~ ΔDEF
will factor into the following
Set each factor equal to 0:
or
x = +/- 2i x = +/- 6
Answer: 2i, 6, -6