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alyonaprotopopova
14.07.2019 •
Mathematics
In triangle abc, angle a is 60 degrees. angle b is 1/4th the measurement of angle c. what is measure of angle c?
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Ответ:
Sum of angles in a triangle is 180°
.
Since we know that angle A = 60,
Therefore angle B + angle C = 180 - 60 = 120°
.
Define x:
Let angle c be x.
angle b = 1/4 x
.
Solve x:
x + 1/4 x = 120
5/4 x = 120
5x = 480
x = 96
.
Find angle c:
angle c = x = 96°
.
Angle C = 96°
Ответ:
15 degrees because its basically dividing 60 divided by 4 is 15
Ответ:
15
Step-by-step explanation: