A triangle has side lengths of 14 cm and 9 cm. Which could be the value of the third side, 25 cm or 19 cm?

19cm

Step-by-step explanation:

Given Lengths

14 cm, 9 cm

We check the triangle's inequalities if we add the third side of 25 cm

14+9 = 23 < 25

We check the triangle's inequalities if we add the third side of 19 cm

14+9 = 23 > 19

14+9 = 23 >19

19+ 9= 28 > 14

Since all the tree inequalities above are true 19cm can be the value

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answer: (c) m∠qpo + (2x + 16)° = 180°

step-by-step explanation:

the opposite angles of a quadrilateral are supplementary.

so, ∠o + ∠q = 180°   and   ∠p + ∠r = 180°

since ∠r = 2x + 16°, we can use substitution as follows:

∠p + ∠r = 180°

∠p + (2x + 16)° = 180°