# Formula for triangle

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area of triangles lesson sequences, ways to 'teach' and explain to students about the formula to work out area of a triangle, 1/2 base x height and why it is '1/2'.

DiscoveringTheAreaFormulaForTriangles IMAGE TrianglesWithSameArea

Giveaway - Discovering Area Formulas with Cutting and Gluing - ends on 07-20-2015

Determining the area of a triangle

### One Formula, to Rule them All

Awesome Geogebra Visuals to explain area formulas for triangles and quadrilaterals. 6.G.1 CCSS

The formula for half-square triangle quilt blocks.

### Formula Review Foldable - Area Rectangle, Parallelogram, Triangle, Trapezoid

Students will review area formulas for rectangles, parallelograms, triangles and trapezoids with this foldable that is perfect for interactive journals. Must be printed front and back. Two practice problems for each figure included for a total of eight

3/8 inch is the height of one dog ear!!! So for the strip size for the easy angle ruler just remove the 3/8 inch from the square size that's supposed to be cut into 1/4's .