15 and 45
Classify the following triangle, by sides. 6cm, 7cm, 3cm
Scalene
What are two angles that when combined equal 180 degrees? Give the vocabulary word.
What are supplementary angles.
Determine if the following angles can be used to make a triangle: 45, 45, 90
Yes - they sum to 180 degrees
65 and 25
<X and <Y are supplementary. <Y and <Z are complementary. The measure of <X is 100 degrees. What is the measure of <Z, in degrees?
<Z is 10 degrees
Determine if the following angles can be used to make a triangle: 30, 30, 30
No - they do not sum to 180 degrees
What are the names of angles where each of the pairs of opposite angles are made by two intersecting lines.
What are vertical angles.
Determine if the following side lengths can be used to make a triangle: 30, 30, 30
120 and 60
Supplementary
Draw an obtuse isosceles triangle while labeling the sides and angles.
Answers will vary.
Grace measured the cake. Then she calculated that it has a circumference of 15 cm. What is the cake's diameter? Round to the nearest hundredth to receive credit.
What is 4.78 cm.
Find the measure of 'x'. Two angles are complementary; one angle is 50 degrees and the other is 4x.
What is x = 10.
Determine if the following side lengths can be used to make a triangle: 5, 10, 4
No - the sum of the two shorter sides is less than the third side.
90 and 90
Supplementary
Draw a triangle with angles that are each 60 degrees. What special triangle is this? What could its sides be?
Answers will vary.
Your teacher will draw a picture of angles at a point. Find the missing angle.
Teacher Answer
Determine if the following side lengths can be used to make a triangle: 10, 9, 1
No - the sum of the two shorter sides is not greater than the third side.