A triangle is shown. 820
540
tro
yo
20
Which of the following statements are true? Select all that apply.
(Y=136)

B. x + y = 180° and C. y = z

x = 180° - 82° - 54°

x = 64°

x + y = 180°

64° + 136° = 180°

so, x + y = 180° it's should be correct

∠y°,∠z° are vertical opposite angles.

112

Step-by-step explanation:

The weight of lightest person will be the minimum weight in the stem and leaf plot.

The stem and leaf plot is

Stem Leaves

11       2 2 5 8 8

12      3 4 5 9

13      1 1 3 4 6 7

14      3 5 7 7

15      3 4 4 7

16      3 6 6 7 8 8

17      3 3 4 7 8

18     4 4 7 8 8 9

19     0 1 1 2 2 8

The minimum weight is 112 in the stem and leaf plot so, it will be the weight of the lightest person.

Thus, the weight of the lightest person in the group is 112.