1. 12A, 12B Pythagoras’ Theorem, 13A, 13B Distance and Midpoint Formulas
Unit 6: Geometry and Trigonometry
12A, 12B, 13A, 13B
5/2/ :00 PM

2. Geometry
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“measurements of the earth” points lines planes polygons polyhedra must often draw and add measures to a diagram to show work angles are always measured in degrees (don’t forget the symbol) use the notation sheet (not the textbook) as a guide for notation use the pi 𝜋 button on your calculator; do not use 3.14 or 22 7 pass along exact values; wait to round until you state an answer
12A, 12B, 13A, 13B
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3. Classifying Triangles
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by interior angle measures terms acute: three acute right: one right obtuse: one obtuse by number of congruent sides scalene: no sides are congruent isosceles: at least two sides are congruent equilateral: all three sides are congruent
12A, 12B, 13A, 13B
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4. Classifying Quadrilaterals
trapezium parallelogram
rhombus rectangle square
(equilateral) (equiangular) (regular)
12A, 12B, 13A, 13B
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5. Classifying Quadrilaterals
12A, 12B, 13A, 13B
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6. Pythagorean Theorem and Distance Formula
( 𝑥 2 , 𝑦 2 )
𝑎 2 + 𝑏 2 = 𝑐 2 d
𝑦 2 − 𝑦 1
( 𝑥 2 − 𝑥 1 ) 2 + ( 𝑦 2 − 𝑦 1 ) 2 = 𝑑 2
𝑥 2 − 𝑥 1
𝑑= ( 𝑥 2 − 𝑥 1 ) 2 + ( 𝑦 2 − 𝑦 1 ) 2
( 𝑥 1 , 𝑦 1 )
( 𝑥 2 , 𝑦 1 ) x
12A, 12B, 13A, 13B
5/2/ :00 PM

7. Pythagorean Theorem applies to right triangles
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applies to right triangles
A rectangle with a diagonal of 12 mm has sides in the ratio 4:1. Find the perimeter and area of the rectangle.
An equilateral triangle has a side length of 5 m. Find the triangle’s area.
12A, 12B, 13A, 13B
5/2/ :00 PM

8. Practice
p. 360: 1ab p. 363: 7, 10, 12 p. 379: 3a p. 381: 3g, 4ae, 9 Read and follow all instructions. List the page and problem numbers alongside your work and answers in your notes. Use the back of the book to check your answers.
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12A, 12B, 13A, 13B
5/2/ :00 PM