Is this a triangle?
Special Right Triangles
Acute, Obtuse, or Right?
Find the Missing Side
Miscellaneous
100

Could the lengths 3, 6, 5 form a triangle? Why or why not?

Yes, 8>6

100

Find the missing lengths. 

x = 12

y = 6 sqrt3

100

Do the following lengths form an acute, obtuse, or right triangle? Support your answer with reasoning.

3, 4, 5

Right. 25 = 25

100

Two sides of a triangle have the following measures. Find the range of possible measures for the third side. 

1 < x < 19

100

When can you use the Pythagorean theorem?

When you are working with a right triangle. 

200

Could the lengths 3, 4, 5 form a triangle? Why or why not?

Yes, 7>5

200

Find the missing side lengths.

v = 2

u = 2 sqrt 2

200

State if the triangle is acute, obtuse, or right. Support your answer with reasoning.

Right. 4900=4900

200

Two sides of a triangle have the following measures. Find the range of possible measures for the third side.

8, 8

0 < x < 16

200

Would the following lengths form a triangle? State your reasoning. 


sqrt2 sqrt2 sqrt2

Yes. The sum of any 2 sides would always be bigger than the third side.

300

Could the lengths 12, 12, 11 form a triangle? Why or why not? 

Yes, 23>12

300

Find the missing side lengths

x = 10

y = 5 sqrt 2

300

Identify the triangle as acute, obtuse, or right. Support your answer with reasoning.

Obtuse. 1089>784

300

Find the missing side length. Round to the nearest tenth.

10.3 km 

300

Would the lengths create an acute, obtuse, or right triangle? State your reasoning

sqrt3 sqrt3 and sqrt3

Acute. 3<6

400

Could the lengths 1/3, 2/3, and 1 form a triangle? Why or why not?

No. 1=1

400

Find the missing side length.

x = 6

y = 6 

400

Will the following side lengths create an acute, obtuse, or right triangle? Support your answer with reasoning.

Acute 5<7

400

Find the missing length.

11.5 yd

400

Find the missing side lengths.

x = (16sqrt3)/3

y = 8

500

Could the lengths form a triangle? Why or why not?

sqrt3 sqrt4 and sqrt1 

Yes, 2.7>2
500

Find the missing side lengths.

y = (4 sqrt 3)/3

x = (8 sqrt 3)/3

500

Use the distance formula to determine if the triangle is acute, obtuse, or right. (Hint: the formula must be used 3 times to find 3 side lengths)

Right. 40 = 40

500

Find the missing length.

9 in 

500

Find the missing side lengths.

y = (5 sqrt6)/3

x = (10 sqrt 3)/3