<span>length of the side = 1.2 / 4 = 0.3 m
area = 0.3</span>² = 0.09 m²
Step 1: Write out the formula
Step 2: Write out the given values and substitute them into the formula
Therefore,
Hence, the area in terms of pi is
The last choice is the correct answer
Answer:
number 1 is b
Step-by-step explanation:
When a perpendicular is dropped from the right-angle (C) to the opposite side AB, the metric relations apply:
BD*BA=a^2 ..........................(1)
AD*AB=b^2...........................(2)
BD*DA=DC^2........................(3)
Given AD=6, AB=24, using metric relation (2) above, we have
b^2=6*24=144
=>
b=sqrt(144)=12
By the way, we conclude that this is a 30-60-90 triangle because b/AB=(1/2)=sin(B) => B=30 degrees.
Answer: b=12
