Length of the basketball court

Today we learn how to measure Length and  width ln meter
and centimeter.
then we had a ruler chalk paper and pen. Then Mrs.sharma
said to get into 5 groups.
Then we all got into 5 groups then Mrs Sharma said we are
doing the basketball court.
Then when we reached to basketball court we started from
the Width after when we reached
 to the end of the line
Mrs Sharma came and told our group that it was wrong so
she said we have to start from the yellow line then we
started again after when we reach the end of the yellow
line it was 14 meter and 9 centimeter. then we did the
length from the start from the yellow line and went all the
way to the end of the yellow line and the measurement  was
29 meter and 89 centimeter.