∠A and \angle B∠B are complementary angles. If m\angle A=(4x+24)^{\circ}∠A=(4x+24) ∘ and m\angle B=(3x-4)^{\circ}∠B=(3x−4) ∘ , then find the

Question

∠A and \angle B∠B are complementary angles. If m\angle A=(4x+24)^{\circ}∠A=(4x+24) ∘ and m\angle B=(3x-4)^{\circ}∠B=(3x−4) ∘ , then find the measure of \angle B∠B.

in progress 0
Thạch Thảo 5 years 2021-08-20T18:42:53+00:00 1 Answers 8 views 0

Answers ( )

  1. diemthu
    0
    2021-08-20T18:43:58+00:00
    Reply

    Answer:

                m∠B = 26°

    Step-by-step explanation:

    ∠A and ∠B being complementary means  m∠A + m∠B = 90°

    4x + 24 + 3x – 4 = 90

    7x + 20 = 90

      7x = 70

       x = 10

    m∠B = (3•10 – 4)° = 26°

Leave an answer

Browse

Giải phương trình 1 ẩn: x + 2 - 2(x + 1) = -x . Hỏi x = ? ( )