Question

please answer my question​

Answer 1

Answer:

Step-by-step explanation:

Answer 2

Step-by-step explanation:

The angle opposite to 3x + 10 will be equal to 3x + 10 ( Theorem : Angles opposite to equal sides are equal )

Angle COD = 3x + 10 ( Vertically opposite angles are equal )

angle OCD = 3x + 10 ( Theorem : angles opposite to equal sides are equal )

OCD + ODC + DOC = 180° ( Theorem : angle sum property of triangle )

2x + 3x + 10 + 3x + 10 = 180

8x + 20 = 180

8x = 180 - 20

8x = 160

x = 160/ 8

x = 20°