The scale factor k can be calculated by dividing the image length by the actual length.
45mm
Practice makes perfect
To find the length of the image seen through the magnifying glass, we will use the fact that the scale factor k can be calculated by dividing the actual length by the image length.
k= image lengthactual length
We know that the magnifying glass makes an image that is 10 times the object's actual size. Therefore, the scale factor is k=10. From the picture of the ladybug, we can see that its length is 4.5mm. We will use these values and the formula to find the image length.
