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I already give you the answer for number 19 but can you please explain. And then can you tell me what question number 20 is and explain to. Thank you!

I already give you the answer for number 19 but can you please explain And then can you tell me what question number 20 is and explain to Thank you class=

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blitzangel
so, You know the outer angle, so you need to know the inner angle on <B. so 180-148 is 32. since you know two of the inside angles, and all triangle angles add up to 180 degrees, take 32+83, which is 115, and subtract that from 180, which is 65
Hope this helps!
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