The perimeter of a square is less than 28cm. What can be said about (a) the length of one of its sides (b)its area?
Answers
Answered by
5
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
Answered by
5
Answer:
please mark me as brainliest
Attachments:
Similar questions