If you represent the problem in a diagram, you will form a triangle with 3 known length of the sides. When you are given all sides, and you are asked to find an angle, you can use the cosine law.
b^2 = a^2 + c^2 - 2ac*cosB
1.4^2 = 1.9^2 + 1^2 - 2(1.9*1)(cosB)
B = 45.78°
Answer:
30,52,69
Step-by-step explanation:
A.) All parallelograms are trapezoids
Answer:
a : 6
b : 240
c : 166.7 or 166.666666667
Step-by-step explanation:
Hope this helps!
Your speed is 3.9 miles per hour
