Respuesta :

Answer:

∠2 = 50°

Step-by-step explanation:

the sum of the 3 angles in a triangle = 180°

to find the third angle, subtract the sum of the 2 angles from 180

∠2 = 180° - (90 + 40 )° = 180° - 130° = 50°


Answer:

If m of 3 is 40, then m2 = 50 degrees.

Step-by-step explanation:

The sum of all interior angle measures on a triangle is always 180.

If the measure of angle 3 is 4, and there is a 90 degree angle, then the last angle in the triangle is equal to m3+90+m2=180.

40+90+m2=180

130+m2=180

m2=50