Is It A Triangle?
Find a Third Side Range
Ordering Sides
Ordering Angles
100

Is it a triangle?

8, 18, 24

Is it a triangle?

Yes!

8+18>24

100

2 and 10

8 < x < 12

100

Order the sides from least to greatest

BC, AB, AC

100

Order the angles from least to greatest 


<P, <Q, <R

200

Is it a triangle?

28, 90, 50

Is it a triangle?

No!

28+50>90

200

3 and 5


2 < x < 8

200

Order the sides from greatest to least


JK, JL, LK

200

Order the angles from least to greatest

<R, <P, <Q

300

Is it a triangle?

41, 7, 47

Is it a triangle?

Yes!

7+41>47

300

7 and 7

0 < x < 14

300

Order the sides from greatest to least


AC, BC, AB

300

Order the angles from greatest to least


<C, <B, <A

400

1, 2, 1


No!

1+1 = 2, which is NOT greater than 2


400

If a triangle has lengths of 30 cm and 10 cm, what are all possible lengths for the third side? (not negatives, its to separate options)

- 10 cm

- 21 cm

- 30 cm

20 < x < 40

- 21 cm

- 30 cm

400

Order the sides from least to greatest 


DE, EV, DV

400

Order the angles from least to greatest if the perimeter is 29 


<C, <B, <A

7+10+x=29

17+x=29

x=12


500

Triangle or not? The three angles are: 

34°, 34°, 112°

Yes!

34 + 34 + 112 = 180

(It is equal to 180)

500

If a triangle has the lengths of 16ft and 28 ft, what are all lengths of the possible side? (not negatives, its to separate options)

- 34 ft

- 12 ft

- 29 ft

- 44 ft

12 < x < 44

- 34 ft

- 29 ft

500

Order the sides from least to greatest


MT, AM, AT

500

Order the angles from greatest to least if the perimeter is 48

            A


            B                                                   C

<B, <A, <C

x+15+21= 48

x+36=48

x=12