Question

SOLVE THIS EQUATION PLEASE.......Q 8.​

Answer 1

Given:

⇒a=35cm,b=28cm,c=9cm

⇒Semi perimeter of tile =

2

a+b+c

⇒Semi perimeter of tile =

2

35+28+9

=36cm

⇒Area of Δ=

s(s−a)(s−b)(s−c)

⇒=

36(36−35)(36−28)(36−9)

=

36×1×8×27

⇒=36×2.45=88.2 cm

2

⇒Area of total 16 tiles =16×88.2=1411.2 cm

2

⇒Cost of polishing per cm

2

area =50p

⇒Cost of polishing 1411.2cm

2

area =Rs. 50×1411.2 =Rs. 705.60

hope this helps you...

Answer 2

Answer:

Answered

Step-by-step explanation:

Formula = Root [ (s-a)(s-b)(s-c)]

Where s= (28+35+9)/2

s= 36

Root [ (36-28)(36-35)(36-9)]

a,b&c are the 3 sides.

Root [ (8)(1)(27)]

Root (216)

= 14.69

Total area= 14.69 × no.of Δs

Cost = Total area× 50

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