Which of the following sets of numbers could represent the three sides of a right triangle?
21, 72, 75,
7, 8, 10
8, 12, 15
14, 84, 85

21 , 72 , 75

Step-by-step explanation:

The one that could represent the three sides of a right angle triangle must obey Pythagoras theorem , that is

a=side of right triangle

b=side of right triangle

c=hypotenuse

Let's check the sides one after the other

1.

this means that

this could represent the three sides of a right triangle

2.

3.

4.

Therefore , the only combination that could represent the three sides of a right triangle will be 21 , 72 , 75

option: d is the correct answer.

d) none of the above.

step-by-step explanation:

clearly from the figure attached to the question we could see that there is no shape given. hence without any shape given in the figure and after rotation we can't obtained a square pyramid.

since, to obtain a image we need a proper figure of the pre-image so that it can be transformed.

hence, the correct answer is:

d) none of the above.

step-by-step explanation:

the answer is 8/21

hope this