So sorry to just be posting this. I had some issues with access to weebly last week.
Block 25 was part of our area unit. Our big focus was to derive and apply the area formulas for triangle, trapezoid, kite, and regular polygon.
We began class with a warm-up to find partial area (shaded area) and to find area of a composite figure given vertices. A grade was taken over HW #1. We shared answers and strategies for HW #1 and the warm-up. Problem 9 from the homework was used as foreshadowing for how to find area of any triangle (every triangle is half of a parallelogram).
We then spent time creating notes on graph paper to give ourselves a visual demonstration of the formulas for triangle, trapezoid, kite, and regular polygon.
Everyone should have seen their test by now or taken it for make-up.
HW #2: pp 418-20: 1-11,13,16,17,19,20,23-25, p 427:1-2.
Please show your work! If solving for a dimension, write out the formula, substitute what you know, solve for what you don't know with algebra.
The quiz is Thurs-Fri, April 5-6, 40 pts.
Attached: the notes on the four formulas. Also look at the investigation on p 426.
Block 25 was part of our area unit. Our big focus was to derive and apply the area formulas for triangle, trapezoid, kite, and regular polygon.
We began class with a warm-up to find partial area (shaded area) and to find area of a composite figure given vertices. A grade was taken over HW #1. We shared answers and strategies for HW #1 and the warm-up. Problem 9 from the homework was used as foreshadowing for how to find area of any triangle (every triangle is half of a parallelogram).
We then spent time creating notes on graph paper to give ourselves a visual demonstration of the formulas for triangle, trapezoid, kite, and regular polygon.
Everyone should have seen their test by now or taken it for make-up.
HW #2: pp 418-20: 1-11,13,16,17,19,20,23-25, p 427:1-2.
Please show your work! If solving for a dimension, write out the formula, substitute what you know, solve for what you don't know with algebra.
The quiz is Thurs-Fri, April 5-6, 40 pts.
Attached: the notes on the four formulas. Also look at the investigation on p 426.
pre-ap_geometry_2018_area_notes_8.2-3.pdf |