anonymous
  • anonymous
In an isosceles trapezoid, two angles are labeled as shown. What is the value of x?
Mathematics
  • Stacey Warren - Expert brainly.com
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SOLVED
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chestercat
  • chestercat
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anonymous
  • anonymous
|dw:1360347206882:dw|
anonymous
  • anonymous
please explain why also
anonymous
  • anonymous
do you know that those two angles add up to 180 degrees?

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More answers

anonymous
  • anonymous
what is the other angel one is 132
anonymous
  • anonymous
2x+10
anonymous
  • anonymous
11 15 16 19 is the answer options
anonymous
  • anonymous
how does that add up to 180
anonymous
  • anonymous
so how do you solve it
anonymous
  • anonymous
here:|dw:1360348431488:dw| you know that B+C=180 right?
anonymous
  • anonymous
yes
anonymous
  • anonymous
so how do i figure out the answer how do i solve this problem.
anonymous
  • anonymous
and A=C. Because they are alternate angles. So replacing C with A in B+C=180, we get B+A=180. There, i just proved why those two angles should add up to 180. Do you understand upto here?
anonymous
  • anonymous
yes
anonymous
  • anonymous
so how do i solve that problem to get the answer
anonymous
  • anonymous
if you write down what we just proved, you get (2x+10) + 132 = 180. Can you solve for x now?
anonymous
  • anonymous
hmm i think so subtract 132 from 180
anonymous
  • anonymous
yup.
anonymous
  • anonymous
then what
anonymous
  • anonymous
after i subtract i get 48
anonymous
  • anonymous
(2x+10)=48
anonymous
  • anonymous
2x+10 = 48. Now?
anonymous
  • anonymous
subtract 10 from 48 ?
anonymous
  • anonymous
yup
anonymous
  • anonymous
then i get 38
anonymous
  • anonymous
then divide by 2
anonymous
  • anonymous
so 19
anonymous
  • anonymous
Yup :)
anonymous
  • anonymous
can u help m with a diff problem ?
anonymous
  • anonymous
okay. Just one before i go to bed.

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