If two adjacent angles of a parallelogram ABCD are (5x-10) and (x+10), then find the
ratio of these angles.
(3​

2 thoughts on “If two adjacent angles of a parallelogram ABCD are (5x-10) and (x+10), then find the<br />ratio of these angles.<br />(3​”

1. Step-by-step explanation:

   The adjacent angles of parallelogram are supplementary

   So the sum of adjacent angles = 180°

   5x – 10 + x + 10 =180°

   6x =180

   x =180/6

   x =30

   5x-10 = 5(30) -10

   = 150 -10

   =140

   x + 10 = 30 +10

   =40

   The ratio of these angles are given by

   140 : 40

   70 : 20

   7 : 2

   I HOPE THIS ANSWER WILL HELPS YOU.

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2. Answer:

   7:2 is the ratio

   Step-by-step explanation:

   As it is given adjacent angles,

   (5x-10)+(x+10)=180 [in a parallelogram sum of adjacent angles=180]

   6x=180

   x=30 degrees

   The angles are 5(30)-10,30+10

   i.e. 140,40

   Ratio is 140:40=7:2

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