△CDE∼△PQR . m∠C=13° , m∠D=65° . What are the measures of angles P, Q, and R?(2 points) m∠P = ° , m∠Q = ° and m∠R= °

1 answer

Since triangles \( \triangle CDE \) and \( \triangle PQR \) are similar (denoted as \( \triangle CDE \sim \triangle PQR \)), the corresponding angles are equal.

Given:

  • \( m\angle C = 13^\circ \)
  • \( m\angle D = 65^\circ \)

To find the measure of angle \( E \) in triangle \( CDE \):

\[ m\angle E = 180^\circ - m\angle C - m\angle D \] \[ m\angle E = 180^\circ - 13^\circ - 65^\circ = 180^\circ - 78^\circ = 102^\circ \]

Now, we find the corresponding angles in triangle \( PQR \):

  • Since \( m\angle C = m\angle P \), we have \( m\angle P = 13^\circ \).
  • Since \( m\angle D = m\angle Q \), we have \( m\angle Q = 65^\circ \).
  • Since \( m\angle E = m\angle R \), we have \( m\angle R = 102^\circ \).

Thus, the measures of the angles in triangle \( PQR \) are:

  • \( m\angle P = 13^\circ \)
  • \( m\angle Q = 65^\circ \)
  • \( m\angle R = 102^\circ \)

Final answer:

  • \( m\angle P = 13^\circ \)
  • \( m\angle Q = 65^\circ \)
  • \( m\angle R = 102^\circ \)