Question:
Convex quadrilateral ABCD has AB = 6, BC = 7, CD= 9, and DA
Last updated: 8/6/2022
Convex quadrilateral ABCD has AB = 6, BC = 7, CD= 9, and DA 5. The area of quadrilatearl of ABCD is 30. Determine the exact value of cos(∠DAB - ∠BCD).
Last updated: 8/6/2022
Convex quadrilateral ABCD has AB = 6, BC = 7, CD= 9, and DA 5. The area of quadrilatearl of ABCD is 30. Determine the exact value of cos(∠DAB - ∠BCD).