Question:
Convex quadrilateral ABCD has AB = 6, BC = 7, CD = 9, and DA
Last updated: 8/12/2022
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(ZDAB-ZBCD).
Last updated: 8/12/2022
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(ZDAB-ZBCD).