Formulas for reducing and enlarging patterns, strips measurements for cutting geometric shapes, calculating binding length and converting yards to meters. - Useful Quilting Formulas - Quilting at BellaOnline
Colorful visual representation of area formulas for rectangles, triangles, parallelogram, triangles, trapezoids, and circles. Great addition to the classroom for elementary education and extremely helpful for remembering area!
Proof of area formulas lesson, circle, parallelogram, triangle. Geometry and math teacher
This video introduces the formula for the area of a triangle. The hook reminds students that the formula is 1⁄2 b x h. It explains how to find the base and height of a triangle in order to find the area and demonstrates why area is calculated this way, using the area of a parallelogram as a proof.