Sangeeta is creating a paper latern
that is 15
centimete long
13 cm wide and 28 cm high. The paper
she plans to use comes in sheets
the have an area of 14 square cm
and cost of rs 15 per sheet She buys
just enough paper to cover the sides
of the lantern. How much the paper
cost to her.
L ㄴ
Answers
Answered by
5
Answer:
surface area of lantern = 2*(15*13 + 13*28 + 28*15) =
= 1958 sq.cm
if a sheet is 14 sq.cm, number of required sheets to cover the lantern = 1958/14 = 140
cost of covering of the lantern = 140*15 = Rs.2,100
HOPE IT HELPS YOU...................................
Answered by
10
Answer
answer is 1680
Step by step explanation
Lateral area of a cuboid =2lh + 2 bh
=2(l + b)×h
=2(15+13)×28
=1568
Area of a sheet = 14 cm²
Total area = Lateral area of a cuboid ÷ Area of a sheet
=1568 ÷ 14 cm²
= 112 cm²
Cost of each 14 cm² sheet = ₹ 15
Cost of each 112 cm² sheet = ₹ 112 ×15
= ₹ 1680
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