Today was our last day to learn and practice complex problems about area in geometry.

Our new content was about circles and parts of circles, which is not on the quiz next Monday-Tuesday over area (about 30 pts).

A grade was taken for 4 pts on HW #6.

We practiced applying and synthesizing area formulas to solve real work problems. (added to HW p 420:20, p 424:7, p 428:12-13.

We learned about where the number Pi came from, and how it relates to the formula for circumference (the definition of Pi is the formula for circumference rearranged). We then demonstrated that the area of a circle is the same as a rectangle with a base of Pi X r and a height of r.

Surface area received a quick discussion with a reference to pp 445-449 to read in the textbook.

HW #7: p 423:2,6, p 435:1-14, p 439: 1-3, 6-7,9, 17

Study HW 5 and 6 and your formulas for the quiz!

Our new content was about circles and parts of circles, which is not on the quiz next Monday-Tuesday over area (about 30 pts).

A grade was taken for 4 pts on HW #6.

We practiced applying and synthesizing area formulas to solve real work problems. (added to HW p 420:20, p 424:7, p 428:12-13.

We learned about where the number Pi came from, and how it relates to the formula for circumference (the definition of Pi is the formula for circumference rearranged). We then demonstrated that the area of a circle is the same as a rectangle with a base of Pi X r and a height of r.

Surface area received a quick discussion with a reference to pp 445-449 to read in the textbook.

HW #7: p 423:2,6, p 435:1-14, p 439: 1-3, 6-7,9, 17

Study HW 5 and 6 and your formulas for the quiz!