Respuesta :

Answer: x=12, A=36, B=54, C=90

lamb35la

Answer:

x=12

A=36

B=54

C=90

Step-by-step explanation:

x: triangles add up to 180 degrees and c uses up 90 so 5x+30=90*           5x=60*          x=12*

A: 2(12)+12

B: 3(12)+18

C: the square in the corner means 90 degrees

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