In a triangle, angle1 is an exterior angle and angle2 and angle3 are its remote interior angles. Find the missing angle measure.

(Picture included) please help I haven’t slept and it’s 6am . I’ll choose brainliest

i pretty sure it is

80 the answer is 80

step-by-step explanation:

sounds & other waves originate from any vibrating object

b

step-by-step explanation:

the equation of a line in point- slope form is

y - b = m(x - a)

where m is the slope and (a, b) a point on the line

calculate m using the slope formula

m = (y₂ - y₁ ) / (x₂ - x₁ )

with (x₁, y₁ ) = (0, 4) and (x₂, y₂ ) = (3, - 5) ← 2 points on the line

m = = = - 3

with m = - 3 and (a, b) = (3, - 5), then

y - (- 5) = - 3(x - 3), that is

y + 5 = - 3(x - 3) → b