Question

the perimeter of a square is 28 cm find its area and the length of its diagonal​

Answer 1

Step-by-step explanation:

Perimeter of a square =4×side

28=4×side

side=28/4=7

Area of a square =side×side= 7×7=49

Area of a square =1/2×(diagonal)sq

Diagonal sq=49×2=98

Diagonal =9.8cm

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