Apex help 10 points!!

5+12+c=90

17+c=90

c=90-17

c=73

Step-by-step explanation:

since this is a right triangle and right triangle will add up to 90 and bla bla bla

I amn't sure tho but if this is wht u learnt then here u go hope it helped

13

Step-by-step explanation:

This is a hypotenuse so we wanna use pythagorean theorem

a^2 + b^2 = c^2

12^2+ 5^2=169

square root of 169 is 13

pls oh pls mark brainliest

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°

60

step-by-step explanation:

every triangle measures a total of 120 degrees. you have to find angle c. we know that isosceles triangles angles are equal. 60 degrees plus 60 degrees gives you 120.