Which of the following angles is a right angle?
apw
apz
apb
wpz

given the following diagram, name an obtuse angle.
apz
zpw
apw
wpb

1) Angle APZ is a right triangle.

2) Angle WPB is an obtuse triangle.

Step-by-step explanation:

A right angle is an angle of  90° or π/2 radians which means quarter of a circle. If a ray is placed so that it bisects a line and the adjacent angles are equal, then they must be right angles.

In the figure we can see ZP is a ray Dividng AB at P and ∠ZPB=90°,then ∠APZ=∠ZPB=90°

Ab obtuse angle is an angle with measure greater than 90°.

Here we can see ∠WPB consists of  ∠ZPB(=90°) and ∠ZPW ,therefore it is greater than 90°.Thus ∠WPB is an obtuse triangle.

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step-by-step explanation: