Question

Can someone help ill give brainΩ

Answer 1

40

Explanation:

∠BAC and ∠CAD are supplementary angles as they are formed on a line of the triangle.

Supplementary angles add up to 180°

This means ∠BAC + ∠CAD = 180

We are given that ∠CAD = 140

So ∠BAC + 140 = 180

==> subtract 140 from both sides

∠BAC = 40°