The diagonals of a rhombus are 8 cm and 15 cm. Find its side.
Think, design and develop a card game on conversion of
units of length to play with your friends.
Tasneem wants to make a metre scale by herself. She
considers the following materials for it—plywood, paper,
cloth, stretchable rubber and steel. Which of these should
she not use and why?
You are given a coin. Estimate how many coins are required
to be placed one after the other lengthwise, without
leaving any gap between them, to cover the whole length
of the chosen side of a notebook. Verify your estimate by
measuring the same side of the notebook and the size of the
coin using a 15-cm scale.
Measure the height of your friend and express it in (i) metres
(ii) centimetres and (iii) millimetres.
Take a tumbler or a bottle. Measure the length of the curved
part of the base of glass or bottle and record it.
Suppose the distance between your school and home is
1.5 km. Express it in metres.
Search for the different scales or measuring tapes at
your home and school. Find out the smallest value that
can be measured using each of these scales. Record your
observations in a tabular form.