How long will the wire be required for a rectangular frame if the frame is 25 cm long and the width is 4/5 of the length?

1. Let’s calculate the width of the frame if it is known by condition that it is equal to 4/5 of the length of the frame, and the length of the frame is 25 cm. To do this, we multiply the length of the frame by the part which is the width.

25 * 4/5 = 5 * 4 = 20 cm frame width.

2. In order to calculate how much wire will go to a rectangular frame, you need to add the values of its measurements, length and width, and multiply the result by 2, since the sides in the rectangle are equal in pairs.

P = 2 * (25 + 20) = 2 * 45 = 90 cm

Answer: The frame requires 90 cm of wire.