dwana06p08zyr
dwana06p08zyr
30-11-2017
Mathematics
contestada
Can someone help me with this
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sqdancefan
sqdancefan
13-02-2018
The "base" angles in an isosceles right triangle are 45°. All the angles in an equilateral triangle are 60°. (These are facts that should be in your memory.)
∠ADC = ∠ADB +∠BDC
.. = 45° +60°
∠ADC = 105°
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