are the two triangles similar how do you know?

A triangle adds up to 180 degrees, so...on triangle DCE if you add 60 and 53 you get 113 and if you add the missing side, in this case the missing side is 67 you get 180.

You can also prove this with the smaller triangle. If you add 60 and 67 you get 127 and if you add 53 all the angles add up too 180 degrees.

Kindly note that the data supplied is not up to 20. Hence, the answer will be based on the number of data given.

Step-by-step explanation:

Given the following data:

BMI of 20 females :

17.7. 33.5. 26.6 24.7

28.8. 23.8. 18.3. 22.1

19.2. 22.6. 22.7. 38.9

27.3. 44.9. 32.2. 23.9

Lower class limit (LCL) = 15.0

Class width = 6.0

Class_intervalfrequency

15.0 - 20.9 3

21.0 - 26.9 7

27.0 - 32.9 3

33.0 - 38.9 2

39.0 - 44.9 1