3. A triangle has a side of length 1, a side of length 4 and an angle of 30◦.
(a) Explain carefully why there are precisely two possible such triangles. [7 marks]
(b) In each case determine the third side length and the other two angles of the triangle.[28 marks]
so i calculated the two angles for triangle 1 and found them to be 7.18 and 142.82. ive tried calculating the angles for triangle 2 and keep getting a negative angle, not sure what im doing.
Please help.
(a) Explain carefully why there are precisely two possible such triangles. [7 marks]
(b) In each case determine the third side length and the other two angles of the triangle.[28 marks]
so i calculated the two angles for triangle 1 and found them to be 7.18 and 142.82. ive tried calculating the angles for triangle 2 and keep getting a negative angle, not sure what im doing.
Please help.