Dear Students,

Today we went over HW problems in Ch.19 and 20, some questions in Practice Test 1 (midterm exam), and reviewed topics in Ch.21 Angles. Please check the notes here for your reference. 

Key points:

• Exterior Angle Theorem
• Regular Polygon interior/exterior angle formulae
• Parallel lines and transversal

Homework:

• Pg 183-186, Ex 1-15
• DeltaMath Ch. 21 Angles 
• ET21: Angles

There will be no school for the following two weeks (April Break). Look forward to seeing you all on April 28th. 
Best,

Ms. Li

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