Monthly Archives: April 2011

Algebra 1a: CST Review WK7 (April 12): Area of Triangles, Parallelograms and Trapezoids Triangle: `A = (bh)/2` or `A= 1/2(bh)` where `b` is the base and `h` is the vertical height. Sometimes it is useful to move the triangle around … Continue reading →

Algebra 1a: CST Review WK5 (April 1): The area of a circle is defined as `A = πr^2`. The relationship between the radius `r` and the diameter `d` is: `2r=d` or `d/2=r` Remember on the 12-2 worksheet (page 101), that … Continue reading →