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- CAHSEE
- STAR(CST) Test
- Example
- Introduction
- Resource
- Linked

# California's Common Core Content Standards

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- CAHSEE
- STAR(CST) Test
- Example
- Introduction
- Resource
- Linked

Classify two-dimensional figures into categories based on their properties. 5

- 3.Understand that attributes belonging to a category of two-dimensional figures also belong to all subcategories of that category. For example, all rectangles have four right angles and squares are rectangles, so all squares have four right angles. 4
- 3.1
**Distinguish among rectangles, parallelograms, and trapezoids.** - 4.Classify two-dimensional figures in a hierarchy based on properties. 3
- 5.
(CA-Standard MG 2.2)**Know that the sum of the angles of any triangle is 1800 and the sum of the angles of any quadrilateral is 3600 and use this information to solve problems.** - 6.
(CA-Standard MG 1.1)*Derive and use the formula for the area of a triangle and of a parallelogram by comparing it with the formula for the area of a rectangle (i.e. two of the same triangles make a parallelogram with twice the area; a parallelogram is compared with a rectangle of the same area by cutting and pasting a right triangle on the parallelogram).*