3.MGSR.1.2: Determine the perimeter of regular and irregular triangles and…
Determine the perimeter of regular and irregular triangles and quadrilaterals with known side lengths.
The South Carolina College- and Career-Ready Standards for Mathematics (2025) outcome 3.MGSR.1.2 for Grade 3 says: “Determine the perimeter of regular and irregular triangles and quadrilaterals with known side lengths.” These printable Fieldbook pages practise it, each with a full answer key. Official wording: South Carolina College- and Career-Ready Standards for Mathematics (2025).
Printable practice for 3.MGSR.1.2
These pages practise a closely related idea; the match to 3.MGSR.1.2 is partial.
- Fence It, Fill It: Area and Perimeter workbook included with the unit
3 English-support pages, 3 practice pages, 3 readings, 1 word wall, 1 unit review, 1 unit test, with answer keys.
- Grade 3 Common Core Math: Patterns and Algebraic Thinking printable pack
1 practice page, with answer keys. Free sample.
- Grade 3 Common Core Math: Geometry and Measurement printable pack
2 practice pages, 1 assessment, with answer keys. Free sample.
- Grade 5 Common Core Math: Geometry and Measurement printable pack
1 practice page, 1 activity, 1 assessment, with answer keys. Free sample.
Need just this outcome? Build a custom pack from these pages, with its answer key, in about a minute. Custom packs come with All-access and school licences.
Compared with Common Core: 3.MD.D.8 (partial).
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