find a | Mathematics | Page 1

sturdy saddleBOT Jun 8, 2023, 12:10 PM

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weary gazelle Jun 8, 2023, 2:26 PM

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im not too good at this stuff but little a = 81°

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oh wait

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actually its 99

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but thats al i can figure out

red flax Jun 8, 2023, 2:59 PM

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i think i did something wrong

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why is it like 200 something after adding b and c

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thx jinghai

lean plover Jun 8, 2023, 3:02 PM

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∵DB=AB
∴∠ADB=∠DAB=35°
∵AC=CE
∴∠CAE=∠AEC=46°
∠DAE=180°-35°-46°=99°
∴∠BAC=99°-35°-46°=18°

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i am not sure

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This figure is not standard

lean plover Jun 8, 2023, 3:09 PM

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red flax i think i did something wrong

ok i know where you did wrong

red flax Jun 8, 2023, 3:09 PM

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0.0

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thx

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where is it

lean plover Jun 8, 2023, 3:11 PM

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DAB=ADB

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Not DBA

red flax Jun 8, 2023, 3:13 PM

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oh thank you

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wait i don't get it

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how

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ok i get it now

lean plover Jun 8, 2023, 3:18 PM

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ok

#find a