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In triangle ABC angle B is 5 times angle A and angle C is 8 less than 4 times angle A what is the size of angle A?
Wiki User
∙ 14y ago
B = 5A
C = 4A - 8
The sum of the angles of a triangle = 180°
A + B + C = 180
A + 5A + (4A - 8) = 180
10A = 188
A = 18.8° (and therefore B = 94° and C = 67.2°)
Wiki User
∙ 14y ago
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