Question

how many full locations can a coin of diameter 1.4 CM complete along the diagonal of a rectangular table with dimensions 80 centimetre × 60 CM​

Answer 1

Length =L=80cm
Breadth=B=60cm
Diagonal =x=?


So use Pythagorean theorem

L square + B square = x square
80(80)+60(60)= x square

6400+3600=x square
10000= x square

So, x = 100 cm

Therefore diagonal = 100cm


Circumference of circle = 2( pie) r
= 2(22/7)0.7
= 2(22)0.1
=44(0.1)
=4.4cm


So, number of times coin will revolve = 100/4.4
= 22.72

So coin will revolve 22 times to cover the distance of the diagonal




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