1
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Let's do this question, which of these can be the set of measures of the sides of a triangle?

2
00:00:06,820 --> 00:00:10,560
Again, it's a question that helps you solidify your fundamentals.

3
00:00:10,750 --> 00:00:11,710
So give it a try.

4
00:00:11,980 --> 00:00:17,020
We know that the sum of two sides of a triangle has to be greater than the third side.

5
00:00:17,200 --> 00:00:17,550
Right.

6
00:00:17,710 --> 00:00:21,910
What about option if you have seven, five and 20.

7
00:00:21,910 --> 00:00:22,220
Right.

8
00:00:22,450 --> 00:00:24,010
What about seven plus five?

9
00:00:24,160 --> 00:00:27,300
That's equal to twelve, which is less than 20.

10
00:00:27,310 --> 00:00:30,010
So it's not a valid triangle.

11
00:00:30,370 --> 00:00:32,230
What about option B?

12
00:00:32,470 --> 00:00:35,350
Nine plus 17 is equal to twenty six.

13
00:00:35,530 --> 00:00:37,300
So that also is not valid.

14
00:00:37,480 --> 00:00:37,900
Right.

15
00:00:38,080 --> 00:00:41,290
Whatever option C, you have 12 plus 15.

16
00:00:41,440 --> 00:00:44,980
That's less than twenty eight, which is mentioned as the third side.

17
00:00:45,170 --> 00:00:46,570
But this is also not valid.

18
00:00:46,780 --> 00:00:48,250
What about option B?

19
00:00:48,370 --> 00:00:50,650
You can see that six plus seven is 13.

20
00:00:50,800 --> 00:00:54,130
That's greater than 12 to X, plus 12 is 18.

21
00:00:54,130 --> 00:00:58,750
That's greater than seven and seven plus 12 is 19 and that's greater than six.

22
00:00:58,930 --> 00:01:01,990
Therefore, the correct answer is option D.