7th Math (C2) - L61--March30
- 1. Assignment: 1-->Set 61 (O) - Due Tuesday (4/3) 2-->Test #10 - Tuesday (4/10) 1
- 2. Lesson 61 Warm-Up: 1) Evaluate: 10m - (my - y2) if m = 10 and y = 6 2) What is the sales tax on a $48.00 purchase if the tax rate is 6.5%? 3) Convert 1/25 to a decimal and a percent. 4) Convert 250% to a fraction and a decimal. 5) Write seventy-six million in scientific notation. 2
- 3. Lesson 61: *FYI...Formula for Area of a Parallelogram: "Base" x "Height" **the base & height must be perpendicular! **Also....opposite angles are always congruent!! B C And... Angle A = Angle C Angle B = Angle D A D Angle A + Angle B = 180 Angle B + Angle C = 180 Angle C + Angle D = 180 Angle D + Angle A = 180 3
- 4. Lesson 61 Examples: Find the perimeter & area of each parallelogram. A) 10 cm 8 cm 12 cm B) 12 cm 13 cm 18 cm 4
- 5. For problems C-F, find the measures of angles c, d, e, & f in the parallelogram. C) e d D) f c 75 E) F) 5
- 6. Figure ABCD is a parallelogram. Find the measures of angles G-I. G) D A I H H) 60 G C B I) 6