parkm4461 parkm4461
  • 19-04-2022
  • Mathematics
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What is the value of x in trapezoid ABCD?
OX=15
OX-20
OX=45
OX=60

What is the value of x in trapezoid ABCD OX15 OX20 OX45 OX60 class=

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evgeniylevi
evgeniylevi evgeniylevi
  • 19-04-2022

Answer:

15.

Step-by-step explanation:

1) property:

m(∠B)+m(∠D)=180°;

2) according to the property:

3x+9x=180°; ⇒ x=15°

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