Triangle ABC is isosceles what is the measure of angle C ? 25 , 30, 60, 75
2 answers:
Answer:
The measure of C is 75 degrees
Step-by-step explanation:
Since ABC is isosceles, we know that C is equal to B. Therefore, we can add all the angles together and set equal to 180 to find the value of x.
A + B + C = 180
x + 5 + 3x + 3x = 180
7x + 5 = 180
7x = 175
x = 25
Now we can plug in the value of x into 3x to find C.
C = 3x
C = 3(25)
C = 75
D, 75 degrees
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