Question

the lengths of 2500 bolts, x mm, are summarised by sigma (x-40) = 875. find the mean length of the bolts​

Answer 1

Angles of triangle xᵒ(x−20), (x-40) О

Now, sum of angles = 180° (ASP of A)

⇒ x + (x-20) + (x-40) = 180

⇒ 3x-60= 180

3x 240

⇒x=80

.. 1st angle, x° = = 80

2nd angle (x-20) = 80-20 = 60°

3rd angle (x-40) = 80-40 = 40°.

I Hope it will help u