Find the perimeter of the triangle if its sides are 3/11 4/11 5/11. the perimeter of an equilateral triangle

| May 13, 2021 | education

Find the perimeter of the triangle if its sides are 3/11 4/11 5/11. the perimeter of an equilateral triangle if its side is 11/17. The perimeter of a square with a side of 3/8 dm. The perimeter of a rectangle with sides 11/13 and 7/13. Area of a rectangle with sides of 2 cm and 4/5 cm. The volume of a rectangular parallelepiped with edges equal to 3 dm, 2 dm and 3/4 dm.

1. The perimeter is equal to the sum of all sides: P = 3/11 + 4/11 + 5/11 = 12/11 = 1 + 1/11;
Answer: 1 + 1/11.
2. The perimeter of an equilateral triangle: P = 3 * 11/17 = 33/17 = 1 + 16/17;
Answer: 1 + 16/17.
3. The perimeter of the square: P = 4 * 3/8 = 12/8 = 1.5 (dm);
Answer: 1.5 dm.
4. Rectangle peerimeter: P = 2 * (11/13 + 7/13) = 2 * 18/13 = 36/13 = 2 + 10/13;
Answer: 2 + 10/13.
5. Area of the rectangle: S = 2 * 4/5 = 8/5 = 1.6 (cm ^ 2);
Answer: 1.6 cm ^ 2.
6. Volume of a rectangular parallelepiped: V = 3 * 2 * 3/4 = 18/4 = 4.5 (dm ^ 3);
Answer: 4.5 dm ^ 3.



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