Question:

An angle measures 15 degrees more than its complement. Find the measure if the two angles?

by  |  earlier

0 LIKES UnLike

one more...

One of the two supplementary angles measures 30 degrees more than twice the other. what is the measure of each angle?

thank you sooo much for your help (:

 Tags:

   Report

4 ANSWERS


  1. complement means they add up to 90

    x + x+15 = 90

    2x + 15 = 90

    2x = 90-15 = 75

    x = 75/2 = 37.5 so

    x+15 = 37.5+15 = 52.5

    supplementary means add up to 180

    x  +(2x+30)  = 180

    3x+30 = 180

    3x = 180-30 = 150

    3x = 150

    x=150/3 = 50

    so 2x+30 = 2*50+30 = 130


  2. complement=90 deg.

    supplement = 180 deg.

    im not doing the work FOR you, but that will help.


  3. 1. complementary angles are those that add up to 90 degrees.

    first divide 90 by two to give you 45 and 45

    then add 15 to one of the 45's and subtract 15 ti the other to get

    60 and 30...and those are your answers

    2. supplementary angles add up to 180 degrees.

    let the smaller one be x

    and the other one twice the smaller one plus 30 i.e 2x+30

    x+(2x+30)=180

    x+2x+30=180

    3x+30=180

    3x=180-30

    3x=150

    x=50

    the smaller angle(x) is 50 degrees

    and the bigger angle (2x+30) is 100+30=130

  4. Let x be the angle in question. Since the angles are complementary, their sum is 90 degrees,

               x+(2x+30)=90

                   3x+30=90

                      3x=60

                         x=20, so 2x+30=70

Question Stats

Latest activity: earlier.
This question has 4 answers.

BECOME A GUIDE

Share your knowledge and help people by answering questions.
Unanswered Questions