SOLUTION: In a triangle ABC, angle B is 4 times angle A and angle C is 19 degrees less than 5 times angle A.
Angle of a,b,c?
A.
B.
C.
Algebra.Com
Question 507736: In a triangle ABC, angle B is 4 times angle A and angle C is 19 degrees less than 5 times angle A.
Angle of a,b,c?
A.
B.
C.
Answer by oberobic(2304) (Show Source): You can put this solution on YOUR website!
A + B + C = 180
.
B = 4A
C = 5A -19
.
substitute
.
A +4A + 5A-19 = 180
10A = 199
A = 19.9
.
B = 4A
B = 79.6
.
C = 5A -19
C = 80.5
.
A = 19.9
B = 79.6
C = 80.5
.
Done.
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