Survey
* Your assessment is very important for improving the workof artificial intelligence, which forms the content of this project
* Your assessment is very important for improving the workof artificial intelligence, which forms the content of this project
Multilateration wikipedia , lookup
Technical drawing wikipedia , lookup
Golden ratio wikipedia , lookup
Euler angles wikipedia , lookup
Apollonian network wikipedia , lookup
Rational trigonometry wikipedia , lookup
Trigonometric functions wikipedia , lookup
Reuleaux triangle wikipedia , lookup
History of trigonometry wikipedia , lookup
Euclidean geometry wikipedia , lookup
CPCTC Lesson.notebook December 09, 2013 Objective: CPCTC DIRT Solve each equation. 26 = 8 + v 4x + 7 = 21 3x 1 CPCTC Lesson.notebook December 09, 2013 Another DIRT Explain the differences between acute, obtuse, right and straight angles. Draw and label one of each. Acute is less than 90. Obtuse is more than 90 and less than 180. Right is exactly 90. Straight is exactly 180. Watch Watch video video 2 CPCTC Lesson.notebook December 09, 2013 Touch arrow to reveal answers. One More DIRT If the m∠ 1 = 2x + 98° and the m∠ 4 = x + 103°, then the m∠7 is:____________ reveal answer 2 1 4 3 6 5 8 7 72 3 CPCTC Lesson.notebook SSS - If the sides of one triangle are congruent to the sides of a second triangle, then the triangles are congruent December 09, 2013 ASA - If two angles and the included side of one triangle are congruent to two angles and the included side of another triangle, then the two triangles are congruent SAS - If two sides of and the included angle of one triangle are congurent to two sides and the included angle of another triangle, then the triangles are congruent. AAS - If two angles and a non-included side of one triangle are congruent to two angles and the included side of another triangle, then the triangles are congruent. HL - If the hypotenuse and one leg of a right triangle are congruent to the hypotenuse and one leg of another right triangle, then the two triangles are congruent. 4 CPCTC Lesson.notebook December 09, 2013 -CPCTCCorresponding Parts of Congruent Triangles are Congruent - once two triangles have been proven congruent, all parts of one triangle are congruent to the same parts on the other triangle. 5 CPCTC Lesson.notebook December 09, 2013 M Is MAT = MHT? _____________ If yes, how do you know? ___________ 8 mm 8 mm If yes, how do you know <A = <H? A Are the two triangles at the right congruent? _________ H T Y J R If so, how do you know? _________ If so, how do you know <J = <O? ____________ O C A 6 CPCTC Lesson.notebook December 09, 2013 P Is PJR = __________. How do you know? ___________ SM = PJ by __________ R J S M PJ SM & R is the midpoint of SJ 7 CPCTC Lesson.notebook December 09, 2013 __ __ Given: BC ≅ DC <A ≅ <E __ __ Prove: AB ≅ ED Statement 1) 2) 3) 4) 5) Reason 1) 2) 3) 4) 5) 8