Erica painted a picture of her dog. The picture has an area of 3,600 cm2 and is square. She has placed the picture in a frame that is 5 cm wide. What is the perimeter of the picture frame? Is the correct answer 260 cm2?
The answer is 10 5x5 is 10cm2 here...
P=LxW
P=5+5
P=10cm2 :D
Is this correct, I guess my son was trying to figure the answer by adding it to the perimeter of the picture.
The answer is 280cm2, ill explain why...
the picture's length is 60cm. The frame is 5 cm wide so u have to add five centimeters to the left and to the right which equals ten centimeters. 60+10=70cm. now you have to multiply four to it which = 280cm2
There.:D
280
To find the perimeter of the picture frame, we need to know the dimensions of the picture itself. From the information given, we know that the picture is square and has an area of 3,600 cm2.
To find the dimensions of the square picture, we can take the square root of the area. In this case, the square root of 3,600 cm2 is 60 cm. Therefore, the picture is a square with each side measuring 60 cm.
To find the dimensions of the entire frame, we need to add the width of the frame on both sides of the picture. The frame is 5 cm wide on all four sides, so we need to add 5 cm to each side of the picture.
Therefore, the dimensions of the framed picture are 70 cm by 70 cm (60 cm for the picture + 5 cm on each side).
To find the perimeter of the picture frame, we add up all the sides. Since the shape is a square, all sides are equal. Therefore, the perimeter is calculated by multiplying the length of one side by 4.
Perimeter = 70 cm x 4 = 280 cm
Therefore, the correct answer is 280 cm, not 260 cm.