Is it a Triangle?
Will this make a triangle? Why or why not?
5 cm - 2 cm - 6 cm
Yes, because the smaller sides' sum is larger than the biggest side.
How many degrees are in a complementary angle?
90*
In a supplementary angle, if one angle is 120*, how many degrees is the other angle?
60*
What is an angle that is less than 90*?
acute angle
A little boy goes shopping and purchases 12 tomatoes.
On the way home, all but 9 get mushed and ruined.
How many tomatoes are left in a good condition?
9
How many degrees make up a triangle?
180 degrees
In a complementary angle, if one angle measures 30*, what is the other angle?
60*
How many degrees are in a supplementary angle?
180*
An angle that shares the same side as another angle is called what?
An adjacent angle
If a boy blows 18 bubbles, then pops 6, eats 7, pops 5, and blows 1, how many are left?
1 bubble
Which is NOT a triangle? Why?
A) 50* - 70* - 60*
B) 30* - 100* - 70*
C) 55* - 38* - 87*
D) 120* - 20* - 40*
B) Does not add up to 180*
In a complementary angle, one angle is 18*, what is the other angle?
72*
In a supplementary angle, one angle is 177*, how many degrees is the second angle?
3*
An angle across from another angle that has the same measurement is what kind of angle?
Vertical
A new medical building containing 100 offices had just been completed.
Mark was hired to paint the numbers 1 to 100 on the doors.
How many times will Mark have to paint the number seven?
20 times
7, 17, 27, 37, 47, 57, 67, 70, 71, 72, 73, 74, 75, 76, 77, 78, 79, 87, 97
Give 3 examples of numbers that do NOT make up a triangle (using the following numbers)
1, 2, 2, 6, 7, 8, 8, 9, 15, 21
*Answers may vary*
How can you tell that an angle is complementary (must give 2 reasons).
It adds up to 90*
It has a square in the corner
Draw, label, and solve:
A supplementary angle. One angle is 87*. What is the other angle?
93*
Drawing may vary.
What are two names for an angle that adds up to 90*?
Complementary
Right Angle
Find the pattern:
What will be the next number in this pattern 2, 3, 5, 8, 13, . . .
21
Give 3 examples of numbers that DO make up a triangle (using the following numbers)
1, 1, 2, 3, 3, 3, 4, 5, 8, 29
Answers may vary
Draw, label, and solve:
A complementary angle. One angle is 50*. What is the other angle?
30*
Picture may vary
How can you tell an angle is supplementary? (must give 2 reasons)
The angles add up to 180*
It forms a straight line
What are two names for an angle that adds up to 180*?
Supplementary
Straight Line/Angle
When Bob was 6 years old, his brother Phillip was half his age. If Bob is 40 years old now, how old is Phillip?
37