dsanders17 dsanders17

03-07-2021
Mathematics

contestada

I NEED HELP ASAP. find the value of the variable that results in congruent triangles.
A. 80
B. 10
C. 50
D. 30

I NEED HELP ASAP find the value of the variable that results in congruent trianglesA 80B 10C 50D 30 class=

Respuesta :

ciaromee ciaromee

03-07-2021

Answer:

A) 80°

Step-by-step explanation:

55° + 45° + (5x + 30)° = 180°

55° + 45° + 30° + 5x = 180°

130 + 5x = 180°

5x = 50°

x = 10°

=> (5x + 30)° = 5*10° + 30° = 50° + 30° = 80

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