Question
a square painting is surrounded by a 2.5cm frame. if the total are of the painting plus frame is 3600 sq cm, find the dimensions of the painting.
Answers
f = frame = 2.5 cm
p = dimension of frame
p + f = dimension of one side of square
Area of a square painting :
A = ( p + f ) ^ 2 = 3600
p + f = sqrt ( 3600 )
p + f = 60
p + 2.5 = 60
p = 60 - 2.5 = 57.5 cm
p = dimension of frame
p + f = dimension of one side of square
Area of a square painting :
A = ( p + f ) ^ 2 = 3600
p + f = sqrt ( 3600 )
p + f = 60
p + 2.5 = 60
p = 60 - 2.5 = 57.5 cm
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