Which term is used to show scale in photos and sketches?

Which term is used to show scale in photos and sketches?

• A. Scale bar
• B. Ruler
• C. Caliper
• D. Tape measure

Answer: (B)

The main idea is using a known reference to convey size in an image or drawing. A ruler provides fixed, easily readable length marks that viewers can compare against to judge actual dimensions. In photos, placing a ruler next to evidence lets you translate the scene into real measurements; in sketches, you can use the ruler to draw to scale so the proportions match real sizes. Among the options, a ruler is the most versatile and directly communicates measurable length in both photos and sketches, making it the best fit here. (Scale bars are common too, but a ruler offers a simple, universally understood reference in both media.)

The main idea is using a known reference to convey size in an image or drawing. A ruler provides fixed, easily readable length marks that viewers can compare against to judge actual dimensions. In photos, placing a ruler next to evidence lets you translate the scene into real measurements; in sketches, you can use the ruler to draw to scale so the proportions match real sizes. Among the options, a ruler is the most versatile and directly communicates measurable length in both photos and sketches, making it the best fit here. (Scale bars are common too, but a ruler offers a simple, universally understood reference in both media.)