Question

RS and TU are parallel lines.
PQ is a straight line.
An angle of size 120° is shown on the diagram.
(b) (i) Write down the letter of one other angle of size 120°
Give a reason for your answer.​

Answer 1

Answer:

b and d are also 120°

b=120° vertical opposite angles

d=b alternate interior anges

Answer 2

Answer:

RS//TU সমান ৰেখা।

PQৰেখাডালে দুয়োটা ৰেখাক ছেদ কৰিছে।

এতেকে,b=120°( বিপ্ৰতীপ কোন)।

এতেকে,a+b=180°(ৰৈখিক যোৰ কোন)।

=a+120°=180°

=a=180°-120°

=a=60°

এতেকে,a=c (বিপ্ৰতীপ কোন)।

এতেকে,c=60°

এতেকে,b=d(সন্নিহিত কোন)।

এতেকে,d=120°

এতেকে,d+e=180°(ৰৈখিক যোৰ কোন)।

=120°+e=180°

=e=180°-120°

=60°

এতেকে,a=60°,b=120°,c=60°,d=120°,e=60°.