Is It a Right Triangle?

Is It a Right Triangle?

Labelling

Label the sides of each shape and the area of each square.

Drag labels to their correct position on the image

144

169

25

12

5

13

Multiple Choice

Did you get the same answer for the last two slides?

• yes

• no

Because you got 169 for both answers these three numbers form a right triangle.

Multiple Choice

Do side lengths of 5, 12, and 13 form a right triangle?

(Hint: I just gave you the answer.)

• yes

• no

Labelling

Label the sides of each shape and the area of each square.

Drag labels to their correct position on the image

8

15

17

64

225

289

Multiple Choice

Do side lengths of 8, 15, and 17 form a right triangle?

(Hint: Did you get the same answer for the last two questions? If you did, the side lengths can form a right triangle.)

• yes

• no

Labelling

Label the sides of each shape and the area of each square.

Drag labels to their correct position on the image

16

10

100

4

8

64

Multiple Choice

Can side lengths of 4, 8, and 10 form a right triangle?

(Hint: Were the two sums the same? If they are, then the side lengths form a right triangle.)

• yes

• no

Labelling

Label the sides of each shape and the area of each square.

Drag labels to their correct position on the image

400

21

441

20

29

841

Multiple Choice

Can side lengths of 20, 21, and 29 form a right triangle?

• yes

• no