Answer:
Therefore,
[tex]m\angle R = 69.4\°[/tex]
Step-by-step explanation:
Given:
In Right Angle Triangle PQR at ∠Q = 90° such that
RQ = 3 ....Adjacent side of angle R
PQ = 8 ....Opposite side of angle R
To Find:
m∠R = ?
Solution:
In Right Angle Triangle PQR, Tan Identity,
[tex]\tan R= \dfrac{\textrm{side opposite to angle R}}{\textrm{side adjacent to angle R}}[/tex]
Substituting the values we get
[tex]\tan R= \dfrac{PQ}{QR}=\dfrac{8}{3}=2.6666\\\\\angle R=\tan^{-1}(2.666)=69.439=69.4\°[/tex]
Therefore,
[tex]m\angle R = 69.4\°[/tex]
