The perimeter of a square is 28 cm. Then its length is
Answers
Answered by
14
Perimeter of square = 4 x side
28 = 4 x s
s = 28/4
s = 7
So the length of the square is 7 cm .
Answered by
57
ANSWER
- Perimeter of square = 4×side
- 28 = 4×side
- side = 28/4 = 7
- Area of square = side × side = 7×7 = 49
- Area of square = 1/2×(diagonal)²
- 49 = 1/2×(diagonal)²
- Diagonal ² = 49×2 = 98
- Diagonal = ✓98 = 9.8cm
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