Question

please give answer for this underlined question ​

Answer 1

Answer:

The sum of all angles is 360°.

So,

(I) x+20+x-30+2x+3x-5+2x+15=360°.

9x=360°.

x=40.

(ii) angle AOB =2x

=2×40

=80

(iii) angle BOD= x+20+x-30

= 2x-10

=2×40-10

=70.

Hope it helps u.