Post a New Question

algebra

posted by .

In triangle ABC, the size of angle B is 5 times the size of angle A, and the size of Angle c is 15 degrees less than 4 times the size of angle A. What is the size of angle A? What is the size of angle B? What is the size of angle C?

  • algebra -

    A+B+C = 180 for a triangle ABC

    B = 5A
    C = 4A-15

    A + 5A + 4A - 15 = 180
    10A = 195
    A = 19.5
    B = 97.5
    C = 63

Respond to this Question

First Name
School Subject
Your Answer

Similar Questions

More Related Questions

Post a New Question