What is the area of a rectangular sheet of glass if it is 4 m long and 2 m wide? What is the perimeter of this sheet?
| February 24, 2021 | education
1. S = a * b, a – length, b – width;
a = 4 m, b = 2 m (by condition);
S = 4 * 2 = 8 sq. – the area of the glass sheet;
2.P = a + b + a + b = 2 a + 2 b = 2 (a + b);
P = 2 * (4 + 2) = 12 meters – the perimeter of the glass sheet.
Answer: 8 square meters; 12 meters.
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