Question

Exercise - 2.2 Find 'x' in the following figure​

Answer 1

Answer:

x=20

Step-by-step explanation:

here, angle 3x+10 = angle AOB( base angles)

angle AOB = angle DOC (vertical opposite)

angle DOC = angle ODC (base angles)

=> 3x+10 = angle DOC = angle ODC

=> in triangle DOC,

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

=> 8x + 20 = 180

=> 8x = 160

=> x = 20