A roll of paper 50 cm by 40 cm was out and 20 cubes with edge 4cm were made
from it. Find the area of the paper
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Answer:
Step-by-step explanation:
Area of the 20 cubes
Area of 1 cube = 4cm × 4cm
= 16 cm
Area of 20 cubes = 20 × 16 cm
= 320 cm²
Length of the paper was out of the roll will be = 50 × 40
= 2000 cm ²
The remaining paper will be 2000 - 320 = 1680 cm²
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