Diagram illustrating six different vectors labeled a through g, each with directional arrows.

Let’s look at each angle and figure out what kind it is — acute, right, or obtuse.

We know:
- An acute angle is less than 90° (smaller than a corner of a square).
- A right angle is exactly 90° (like the corner of a book or a square).
- An obtuse angle is more than 90° but less than 180° (wider than a right angle, but not straight).

Now let’s go one by one:

a. This angle looks like it’s bigger than 90° — it’s wide open. So it’s obtuse.

b. Also looks wider than 90° — definitely obtuse.

c. This one is very wide — almost flat, but still bent. That means it’s obtuse too.

d. Again, this is clearly wider than 90° — obtuse.

e. This one is sharp — smaller than 90°. So it’s acute.

f. Also sharp — smaller than 90° — so acute.

g. Very small and narrow — definitely acute.

Wait — did we miss any? Let’s double-check.

Actually, none of these look like they’re exactly 90°. None have that perfect “L” shape. So no right angles here.

So final classification:

- Acute: e, f, g
- Obtuse: a, b, c, d

That’s all seven.

Final Answer:
Acute angles: e, f, g
Obtuse angles: a, b, c, d