Get the most out of your questions with the extensive resources available on IDNLearn.com. Ask any question and get a thorough, accurate answer from our community of experienced professionals.

Tell whether the angles are complementary or supplementary. Then find the value of x.

Tell Whether The Angles Are Complementary Or Supplementary Then Find The Value Of X class=

Sagot :

Answer:

  • 7) x = 5
  • 8) x = 20

Step-by-step explanation:

Complementary angles form a right angle and supplementary angles form a straight angle.

#7

Complementary:

  • 65 + 5x = 90
  • 5x = 25
  • x = 5

#8

Supplementary:

  • 2x + 6x + 20 = 180
  • 8x = 160
  • x = 20

Step-by-step explanation:

1)

Since we know that sum of two complementary angles are 90⁰

=> 65 + 5x = 90

=> 5x = 90 - 65

=> 5x = 35

=> x = 35/5

=> x = 7⁰

2)

Since we know that sum of two supplementary angle are 180

=> 2x + 6x + 20 = 180

=> 8x = 180 - 20

=> 8x = 160

=> x = 160/8

=> x = 20