Answer:
5
Step-by-step explanation:
17x -8x -9 = 76 - 40
17x -8x = 76 - 40 + 9
9x = 45
x = 45/9
x=5
180-145 equals 35. missing angle=35 degreees
Answer:
3.5 / 1 = 3.5 mph hope this helps....
Step-by-step explanation:
Answer:
1. draw the parallelogram with side 20cm and 25cm respectively and also the diagonal as well.
2.Clearly it forms a triangle in the parallelogram with three known lengths of side.
3.Using the cosine rule : c^2=b^2+c^2 -2bc cos c to find the obtuse angle.
Step-by-step explanation: