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Sonbull [250]
3 years ago
13

The sheet of metal has dimensions 56 cm by 33 cm. It sis melted down

Mathematics
1 answer:
sammy [17]3 years ago
6 0

Answer:

12 discs

Step-by-step explanation:

Sheet metal has dimensions of 56 cm by 33 cm. This indicates that it is a rectangle.

A_rectangle = length × width

A_rect = 56 × 33

A_rect = 1848 cm²

It is now melt down and recast into disc's of 7 cm radius and similar thickness.

Thus;

Area of one disc = πr² = π × 7² = 49π

Thus,number of disc's cast = 1848/49π

number of disc's cast = 12

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