Answer:
Obtuse
Step-by-step explanation:

Since the hypotenuse is bigger, the triangle is obtuse
360 - 20 + 2x = 360
340 + 2x = 360
2x = 20
x = 10
Answer:
PQ = 16
Step-by-step explanation:
Using the cosine ratio in the right triangle and the exact value
cos60° =
, then
cos60° =
=
=
=
( cross- multiply )
PQ = 8 × 2 = 16
2^2. 2 and 2. Because 2 and 2