Question

plz answer with explaination!!!!!!!!!!!!!urgent!!!!!!!!!!!!​

Answer 1

Answer:

if we draw the trapesim and label it we can say that <A and <C are opposite to each other ...

sum of all the 4 angles of a quadrelateral is 360° ...

so sum of 2 angles will be 360°÷2=180°...

so <A+<C=180°

80+<C=180°

<C=180°-80°

<C=100°