230k views
5 votes
Fixed Please Answer All Three Questions And Correctly

Fixed Please Answer All Three Questions And Correctly-example-1
Fixed Please Answer All Three Questions And Correctly-example-1
Fixed Please Answer All Three Questions And Correctly-example-2
Fixed Please Answer All Three Questions And Correctly-example-3

1 Answer

3 votes

#1

Midsegment is half the parallel side:

  • 11x + 5 = 2(3x + 5)
  • 11x + 5 = 6x + 10
  • 11x - 6x = 10 - 5
  • 5x = 5
  • x = 1
  • Midsegment length = 3*1 + 5 = 8
  • Third side length = 8*2 = 16

#2

ORT is isosceles, the angles O and R are equal and measure:

  • 1/2(180 - 72) = 1/2(108) = 54

IRN is isosceles, the angles N and I are equal and measure:

  • 1/2(180 - 54) = 1/2(126) = 63°

#3

ABC is isosceles, the angles A and B are equal and measure:

  • 1/2(180 - 50) = 1/2(130) = 65°
User Jprofitt
by
6.4k points
Welcome to QAmmunity.org, where you can ask questions and receive answers from other members of our community.