Answer:
80°
Step-by-step explanation:
The sum of the angles of any triangle must add up to 180°. If you form a triangle with an angle of 40° and another angle of 60°, the sum of those two angles is 40 + 60 = 100, so the measure of the third angle: 180 - 100 = 80°.
315
x+y+3w
They didn’t use a ruler I think they made their own materials from what they had. Also thank you.
26
because a is gone in b than