Question

please answer this question ​

Answer 1

Step-by-step explanation:

Area of one triangular tile =

s = 9+28+35 /2

= 72 / 2

= 36

Here, s=36, a=9 , b=28 and c=35

area = √s(s-a) (s-b) (s-c)

=√36 (36-9)(36-28)(36-35)

=√36*27*8*1

=√7776

=88.2 cm^2

area of the floral design =(16*88.2) cm^2

=1411.2 cm^2

cost of polishing the tiles =$(0.5*1411.2)

=$705.6

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in question marked answer is incorrect

.i. e. $500