Video Transcript
Look at the given shape. How many acute angles are there in
the shape? How many obtuse angles are there in
the shape? How many right angles are there in
the shape?
In this question, we have to count
the number of acute angles in the given shape, the number of obtuse angles, and the
number of right angles. We can answer the third part of the
question really quickly. This blue square is the symbol we
use to show a right angle, so we know the shape has one right angle. How many acute angles are
there? We know acute angles measure less
than 90 degrees or less than a right angle. This is an acute angle, and this is
an acute angle. Both of these angles measure less
than a right angle. This angle is greater than a right
angle. We call this type of angle an
obtuse angle. So, there are two acute angles, one
obtuse angle, and one right angle in the given shape.