Here is a toy with slanting slabs attached to its sides; the greater the angles or slopes of the slabs, the faster the balls roll.

Here is a toy with slanting slabs attached to its sides; the greater the angles or slopes of the slabs, the faster the balls roll. Class 6

Question 1.

Here is a toy with slanting slabs attached to its sides; the greater the angles or slopes of the slabs, the faster the balls roll. Can angles be used to describe the slopes of the slabs? What are the arms of each angle? Which arm is visible and which is not? Class 6

Solution:

Yes. In each of these angles, one arm is the vertical edge of the toy, and the second arm is the slanting slab.

The slanting slab is visible, while the vertical edge of the toy is not visible.

Question 2.

Observe the images below where there is an insect and its rotated version. Can angles be used to describe the amount of rotation? How? What will be the arms of the angle and the vertex? Class 6

Hint: Observe the horizontal line touching the insects.

Solution:

Yes. A quarter turn in each of the given figures describes the rotation through a right angle.

In both the figures, horizontal and vertical lines are the arms of the angle.

Further, the base of each insect is the vertex of the angle.