Answer: The correct option is (D). RF.
Step-by-step explanation: We are given to select the correct side that is included between the angles ∠R and ∠F in ΔFTR.
As shown in the attached figure, we have drawn triangle FTR.
Now, the side that is included between the angles ∠R and ∠F has endpoints at the vertices R and F.
So, we call that side as the side RF.
Therefore, the required side that is included between the angles ∠R and ∠F is the side RF.
Thus, (D) is the correct option.
<u><em>Seventy-seven is a composite number. </em></u>
Because you had to divide by eleven or seven. Then you can multiply by seven or eleven its equal to seventy-seven.
Final answer:
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-Charlie