Question

Above are two different models of the same television. If the screen in the model on the left has a 10-cm diagonal, what is the diagonal of the screen in the model on the right?
A.
20 cm
B.
30 cm
C.
40 cm
D.
60 cm

Answer 1

I can't see the picture you mean. Could you either upload the image or describe the two models (for example: the widths or heights of the two pictured TVs, or any labeled measurements shown)?

How you can get the answer once you provide (or measure) one corresponding length on each picture:
1. Measure any one linear feature that corresponds in both models (for example the screen width or the entire TV height) on the left picture and on the right picture.
2. Compute the scale factor r = (measurement on right) / (measurement on left).
3. Multiply the given 10 cm by r to get the diagonal of the right screen: diagonal_right = 10 × r.

If you upload the picture or give the two measured values I’ll compute the diagonal and pick the correct choice for you.