A Triangle given a Side and two Angles

1
A Triangle given a side and 2 angles
Construct a triangle PQR having PQ 7 cm, ?RPQ
30º and ?PQR 57º
Task
Making a Rough Sketch

• Draw a rough sketch of the triangle.

• Label its vertices.
• (Select the base as the given side)

R

• Write the length of the given side.

• Label the given angles.

57º
30º
Q
P
7 cm
2
A Triangle given a side and 2 angles

• Construct line PQ 7 cm long.

• At P construct an angle of 30º.

• Label the angle.

• At Q construct an angle of 57º and label the
  angle.

• Label the point of intersection R.

R
57º
30º
P
Q
7 cm