Question

please give step by step explaination​

Answer 1

Answer:

explained below.....

Step-by-step explanation:

a). angle ACB=1/2*angle AOB(angle at the circumference=1/2*angle at centre)

so....x=40°

b). x=2*90°(same reason)

=180°

c). in triangle abc, angle a=180-(angle b+anglec)

(sum of angles of triangle=180°)

a=70°...

so....x=70°.... because angles at the circumference are equal.

d). x=2*60°(same reason as in (a).)

=120°

e).x=70°/2(same reason as (a).)

=35°

Answer 2

Answer:

Actually, if. you see..all will be strangers before you talk to them for the first time.

correct ta?! ah?