Help

# MAFS.912.G-SRT.2.4

Prove theorems about triangles. Theorems include: a line parallel to one side of a triangle divides the other two proportionally, and conversely; the Pythagorean Theorem proved using triangle similarity.
Subject Area: Mathematics
Domain-Subdomain: Geometry: Similarity, Right Triangles, & Trigonometry
Cluster: Level 3: Strategic Thinking & Complex Reasoning
Cluster: Prove theorems involving similarity. (Geometry - Major Cluster) -

Clusters should not be sorted from Major to Supporting and then taught in that order. To do so would strip the coherence of the mathematical ideas and miss the opportunity to enhance the major work of the grade with the supporting clusters.

Date of Last Rating: 02/14
Status: State Board Approved
Assessed: Yes

### TEST ITEM SPECIFICATIONS

• Item Type(s): This benchmark may be assessed using: MC , ETC item(s)
• assessed with:

MAFS.912.G-SRT.1.3

### SAMPLE TEST ITEMS (2)

• Test Item #: Sample Item 1
• Question:

Katherine uses , where  to prove that a line parallel to one side of a triangle divides the other two sides proportionally. A part of her proof is shown.

Which statement completes step 8 of the proof?

• Difficulty: N/A
• Type: MC: Multiple Choice