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ACT
In this task, students are shown three unit squares and two line segments connecting two pairs of vertices. They are asked to find the area of a triangle formed by intersecting lines. They can solve it using coordinate geometry or properties of similar triangles. Aligns with G-GPE.B.5, G-GPE.B.4, G-CO.A, and G-SRT.B.5.
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CCSS:
Designed
Concepts
Additional Tags
prove the slope criteria for parallel and perpendicular lines and use them to solve geometric problems, rigid motions, use congruence and similarity criteria for triangles to solve problems, use coordinates to prove simple geometric theorems algebraically, cc by-nc-sa 4.0, ccss.math, creative commons attribution-noncommercial-sharealike 4.0, g-co.a, g-gpe.b.4, g-gpe.b.5, g-srt.b.5, hsg-gpe.b.4, hsg-gpe.b.5, hsg-srt.b.5, illustrative mathematics, illustrative mathematics: g-gpe, g-co, g-srt unit squares and triangles hsg-srt.b.5, hsg-gpe.b.4, hsg-gpe.b.5, unit squares and triangles, area of triangle
Classroom Considerations
- Knovation Readability Score: 5 (1 low difficulty, 5 high difficulty)
- The intended use for this resource is Instructional|practice