Recall that
which means
Now, 
could be positive or negative, which means 
. If we specifically knew the sign of was positive, then we can simplify and write
or if it's negative,
For a 30-60-90 triangle the sides always have the same relationship
Short leg = a
Long leg = a√3
Hypotenuse = 2a
BC is the short leg of ∆ABC
Given BC = 2
BC = a
Therefor
a = 2
AB = 2a = 4
AC = a√3 = 2√3
For ∆ACD
As above AC = 2√3
Since AC is the hypotenuse of ∆ACD
2a = 2√3
a = √3
CD = a = √3
AD = a√3 = 3
For ∆BCD
As above
BC = 2
CD = √3
Since BC is the hypotenuse of ∆BCD
2a = 2
a = 1
DB = a = 1
Answer:
Step-by-step explanation:
we know that
In the triangle XYZ
Applying the law of sines
solve for z
Answer:
Volume A= one third
Step-by-step explanation:
Use volume B
