The dimensions of a photograph are30cm ×20cm.what length of wooden frame is needed to frame the pictures?
To determine the length of the wooden frame needed to frame the photograph, we will add the dimensions of the photograph (including both the length and width) and calculate the perimeter.
The length of the photograph is given as 30 cm, and the width is given as 20 cm. To find the perimeter of the photograph, we will add these two dimensions together and then multiply by 2.
Perimeter = (Length + Width) × 2
Plugging in the values:
Perimeter = (30 cm + 20 cm) × 2
Perimeter = 50 cm × 2
Perimeter = 100 cm
Therefore, a wooden frame with a length of 100 cm is needed to frame the photograph.