Q. 134.5( 11 Votes )

A hand fan is mad

Answer :

Let a, b and c are the sides of triangular strips and s is

the semi-perimeter, then its area is given by:

A = where [Heron’s Formula]

= = 32


A = = cm2

Hence, total area of 5 Nos of triangular strips of one type = 5 × 168 = 840 cm2

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