A rectangular track is 40m long 30m broad.A man starts walking from one corner to another . Find the distance travelled and displacement.

Answer 1

corner to corner is one length and one breadth
... distance = 40 + 30

the diagonal is the hypotenuse of a 3-4-5 triangle
... displacement = √(30^2 + 40^2)

Answer 2

𝗗𝗶𝘀𝘁𝗮𝗻𝗰𝗲 =𝟰𝟬𝗺+𝟯𝟬𝗺=𝟳𝟬𝘮
𝘋𝘪𝘴𝘱𝘭𝘢𝘤𝘦𝘮𝘦𝘯𝘵 𝘪𝘴 𝘵𝘩𝘦 𝘴𝘩𝘰𝘳𝘵𝘦𝘴𝘵 𝘥𝘪𝘴𝘵𝘢𝘯𝘤𝘦 𝘤𝘰𝘷𝘦𝘳𝘦𝘥 𝘣𝘦𝘵𝘸𝘦𝘦𝘯 𝘪𝘯𝘪𝘵𝘪𝘢𝘭 𝘢𝘯𝘥 𝘧𝘪𝘯𝘢𝘭 𝘱𝘰𝘴𝘪𝘵𝘪𝘰𝘯.
𝗗𝗶𝘀𝗽𝗹𝗮𝗰𝗲𝗺𝗲𝗻𝘁=√𝟰𝟬𝗺^𝟮+𝟯𝟬𝗺𝗺^𝟮
=𝟭𝟲𝟬𝟬𝗺+𝟵𝟬𝟬𝗺=√𝟮𝟱𝟬𝟬𝗺=𝟮𝟱𝗺