D is 32
Bc of the alternate angle thing I don’t remember what it’s called
Anddd
For B
180-138= 42=42+29=71
180-71=109
Therefore a is 109
32 +20 is 52
180-52 =128
Answer:-2=-2 (b)
Step-by-step explanation:
I just took that lesson
When we use this = it means it is the exact
answer
When we use ≈ it means it is an estimated answer and not the exact answer Example 12.4684729572974729758328 ≈ 12
