Answer:
Correct answer is option A. T
Step-by-step explanation:
Given that
In a
, RS = 7, RT = 10, and ST = 8.
To find:
Smallest angle = ?
Solution:
We can use cosine rule here to find the angle.
Formula for cosine rule:

Where
a is the side opposite to 
b is the side opposite to 
c is the side opposite to 
Using the cosine rule:

Now, let us use Sine rule to find other angles:



Smallest angle is 
Correct answer is option A. T
I’m a complete parallelogram
Answer:
6.23*10^6
Step-by-step explanation:
We first write the answer in full notation 6,230,000.
Then we count how many decimal places it takes before we have one leading digit. Since it is six, we move the decimal place and write 6.23*10^6
It's too short. Write at least 20 characters to explain it well.