Question

Do number 5 pleaseee

Answer 1

Answer:

Equation: 3y=180

m<ABC=120

Step-by-step explanation:

We know that this angle in total is 180 degree, because it's flat and half a circle. It says that ABC = 2y and BCD = y

So, we can say that 2y+y=180.

2y is what we are trying to find out, so if we divide 180 by 3 (to isolate y), we get $y=60$

So, we can multiply y by 2 to get a total of 120 degrees.

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