Respuesta :

boatengapostle08

I can only solve no.2

Step-by-step explanation:

CAB=ABC(ISCOSCELES TRIANGLE)

SO REPRESENT THEM BY X BECAUSE YOU DON'T KNOW THEM

THEIR SUM =180

SO,CAB+ABC+ACB=180

SUBSTITUTE THEIR VALUES

X+X+120=180

2X+120=180

2X=180-120

2X=60

[tex] \frac{2x}{2x} = \frac{60}{2 } [/tex]

cancel

so x is 30 degrees

Trust me

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