Answer:
Its a right angle triangle so trigonometry is used.
a is the hypotenuse, b is the adjacent.
Use sin to find a. Use tan to find b.
ABC is a straight line. BD=BC Angle ADB=80° Angle BDC=20° Work out the size of the angle marked x. Give reason for your answer.
1 answer:
You might be interested in
M = (x₁ + x₂)/2 , (y₁ + y₂)/2
(-1, 2) =
At this point, it is easier to separate the x's and y's into two different equations:
x's: -1 =
-2 = 3 + x
-5 = x
y's: 2 =
4 = 4 + x
0 = x
Answer: (-5, 0)