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Mathematics, 11.03.2021 18:20 blakestuhan

What mistake did he likely make? 1.He subtracted 55° from 90° instead of 180°.
2.He subtracted from 180° instead of 90°
3.He added 55° to 180° instead of 90°.
4.He added 55° to 90° instead of 180°.

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What mistake did he likely make? 1.He subtracted 55° from 90° instead of 180°.
2.He subtracte...
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