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mixer [17]
3 years ago
5

Please helpppp and explain

Mathematics
1 answer:
dolphi86 [110]3 years ago
3 0

Answer:

angle BAC=50-2x

Step-by-step explanation:

angle ACD=115+x

then, angle ACB=180-(115+x)   because it is a supplementary angle

angle ABC=angle ACB because it is an isosceles triangle

angle BAC=180-2[180-(115+x)]

angle BAC=180-360+230-2x

angle BAC=50-2x

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