4.14.2 4.3 & 4.4 4.5 & 4.6 4.7 10 20 30 40 50 + Question 4.1 – 10 Identify the triangle that fits the given description. obtuse.

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Presentation transcript:

& &

+ Question 4.1 – 10 Identify the triangle that fits the given description. obtuse

+ Answer 4.1 – 10 JLM

+ Question Identify the triangle that fits the given description. acute

+ Answer 4.1 – 20 JKL

+ Question Identify the triangle that fits the given description. equilateral

+ Answer 4.1 – 30 JKL

+ Question Identify the triangle that fits the given description. isosceles

+ Answer 4.1 – 40 JLM

+ Question

+ Answer 4.1 – 50 acute

+ Question Find the value of x.

+ Answer 4.2 – 10 33

+ Question Find the value of x.

+ Answer 4.2 – 20 11

+ Question 4.2 – 30 Find the mL1.

+ Answer 4.2 – o

+ Question

+ Answer 4.2 – o, 82 o

+ Question

+ Answer 4.2 – o, 90 o

+ Question 4.3 & Find the value of x.

+ Answer 4.3 & 4.4 – 10 5

+ Question 4.3 & Find the length of the hypotenuse in the triangle shown. Use a calculator to round your answer to the nearest tenth.

+ Answer 4.3 & 4.4 –

+ Question 4.3 & Plot the points and find the distance between them.

+ Answer 4.3 & 4.4 – 30 10

+ Question 4.3 & Plot the points and find the distance between them.

+ Answer 4.3 & 4.4 – 40 about 4.5

+ Question 4.3 & Find the measure of all numbered angles in the figure below.

+ Answer 4.3 & 4.4 – 50 mL1 = 118 o mL2 = 31 o mL3 = 46 o

+ Question 4.5 & Is the triangle shown below acute, right, or obtuse?

+ Answer 4.5 & 4.6 – 10 acute

+ Question 4.5 & Classify the triangle with the given side lengths as acute, right, or obtuse.

+ Answer 4.5 & 4.6 – 20 obtuse

+ Question 4.5 & Classify the triangle with the given side lengths as acute, right, or obtuse.

+ Answer 4.5 & 4.6 – 30 obtuse

+ Question 4.5 & D is the centroid of ABC. Find DC and DE if EC = 33.

+ Answer 4.5 & 4.6 – 40 DC = 22 DE = 11

+ Question 4.5 & n y P is the centroid of JKL. Find KP and PM.

+ Answer 4.5 & 4.6 – 50 KP = 12 PM = 6

+ Question Use the diagram at the right to complete the statement.

+ Answer 4.7 – 10 mLC AB AB < BC < CA

+ Question Name the smallest and largest angles of the triangle.

+ Answer 4.7 – 20 smallest: LK largest: LJ

+ Question Name the shortest and longest sides of the triangle.

+ Answer 4.7 – 30 shortest: WX longest: YW

+ Question Can the side lengths form a triangle? Explain.

+ Answer 4.7 – 40 No, because = 6. Yes, because the sum of two sides is greater than the sum of the third in all three cases. A triangle can be formed. No, because < 17.

+ Question

+ Answer 4.7 – 50 Yes, because the sum of two sides is greater than the third side in all three cases. A triangle can be formed with these measurements.