Question

34. A floral design on a floor is made up of
16 tiles, each triangular in shape having
sides 16 cm, 12 cm and 20 cm. Find the
cost of polishing the tiles at 1 per sq cm.
20 cm
w Z2
16 cm​

Answer 1

Step-by-step explanation:

s= (16+12+20)/2

= 48/2

= 24

Area = √{ 24×(24-16)×(24-12)×(24-20)}

= √{24×8×12×4)

= √{4×6×4×2×6×2×2×2}

= 4×6×2×2

= 96

total area = 96×16

= 1536

total cost = ₹ 1536