Grades 7-8 Video Solutions 2024-2024_7-8

Video Transcription

Video Summary

Gerard cuts a large rectangle into four smaller ones, with known perimeters of 16, 18, and 24. To find the perimeter of the fourth rectangle, note that the sum of two perimeters (16 and 18) equals the sum of the other two (unknown and 24). Using the relationship of the dimensions (A, B, C, D) of the rectangles, both sums equate to the collective perimeter of the large rectangle. Solving this equation, the unknown perimeter is calculated as 16 + 18 - 24, yielding 10. Thus, the perimeter of the fourth rectangle is 10.

Keywords

rectangle

perimeter

geometry

calculation

mathematics