∠A and \angle B∠B are complementary angles. If m\angle A=(x+16)^{\circ}∠A=(x+16) ∘ and m\angle B=(x-12)^{\circ}∠B=(x−12) ∘ , then find the m

Question

∠A and \angle B∠B are complementary angles. If m\angle A=(x+16)^{\circ}∠A=(x+16) ∘ and m\angle B=(x-12)^{\circ}∠B=(x−12) ∘ , then find the measure of \angle A∠A.

in progress 0
Khang Minh 1 year 2021-09-01T11:46:59+00:00 1 Answers 20 views 0

Answers ( )

  1. RobertKer
    0
    2021-09-01T11:48:09+00:00
    Reply

    Answer:

    Step-by-step explanation:

    ∠A + ∠B = 90    {∠A & ∠B are complementary}

    x + 16 + x – 12 = 90

    x + x + 16 – 12 = 90       {Combine like terms}

    2x  + 4 = 90        { Subtract 4 form both sides}

            2x = 90 – 4

            2x = 86          {divide both sides by 2

            x   = 86/2

               x = 43

Leave an answer

Browse

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