(b) 150
Sangeeta is creating a paper lantern that is 15 centimetres long. 13 centimetres wide and 28
cues mign. The paper she plans to use comes in sheets that have an area of 14 square
metres and cost 15 per sheet. She buvs iust enough paper to cover the sides of the
lantem. How much the paper cost to her?
(a) 2060
(b) 1680
(c) 2580
(d) 1750
Answers
Answered by
7
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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