3 years ago

I need help with this please

Mathematics

1 answer:

Marta_Voda [28]3 years ago

4 0

Answer:

a=40 degree( vertically opposite angle)

a+b+90=180( area of triangle)

or, 40+ b+ 90=180

or,b=180-130

b=50 degree

c+65=180 (st.line)

or, c= 180-65

c= 115 degree

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