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Answer:
(a) exactly two unique triangles
Step-by-step explanation:
The third angle is ...
180° -50° -80° = 50°
Two of the angles are the same, so two of the sides are the same length. The given side measure can be either one of the two unique side lengths, giving rise to exactly two unique triangles.
Answer:
B
Step-by-step explanation:
Hope this helped!
(if this is a mulitlple choice question then choose B & D)
Answer:
3
Step-by-step explanation:
The circle gets bigger, so the only option is a positive whole number.
For this case we must find the solution of the following equation:

Rewriting the mixed number in the form of improper fraction we have:

Add
to both sides of the equation:

We add the fractions with the same denominator:

So, the solution is 
Answer:

Answer:
21 cm
Step-by-step explanation:
C= 2πr
132=2*22/7*r
132=44/7*r
r= 7*132/44
r=21 cm