Let ΔABCDelta ABCΔABCbe a regualr triangle, and D is a point in the triangle. Given the angle of ∠CDA,∠BDCand∠ADBangle CDA, angle BDC mathrm{and} angle ADB∠CDA,∠BDCand∠ADB. Then let AD, CD and BD form a new triangle, what is the size of the three angles?
Let ΔABCDelta ABCΔABC be a regualr triangle, and D is a point in the triangle. Given the angle of ∠CDA,∠BDC and ∠ADBangle CDA, angle BDC mathrm{and} angle ADB∠CDA,∠BDC and ∠ADB. Then let AD, CD and BD form a new triangle, what is the size of the three angles?
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