Grades 11-12 Video Solutions 2026-2026_11-12

Video Transcription

Video Summary

The shapes all share the same gap between the parallel lines, so let that distance be 1.

- Figure 1: semicircle, area \( \pi/2 \)
- Figure 2: circle, area \( \pi/4 \)
- Figure 3: square, area \(1\)
- Figure 4: equilateral triangle, area \(1/\sqrt{3}\)
- Figure 5: smaller equilateral triangle, so its area is less than Figure 4

Comparing values gives:
\[
S_1 > S_3 > S_2 > S_4 > S_5
\]

So the correct choice is <strong>C</strong>.

Keywords

semicircle

circle

square

equilateral triangle

area comparison