Question

in this figure

find angle abc, angle BAC and angle ACB of the triangle angle ABC

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Answer 1

Answer:

ABC =50°

Step-by-step explanation:

x+X=100°. since sum of two interior angles is equal to opposite exterior angle

2x=100°

X=100/2=50°

Answer 2

Step-by-step explanation:

Interior opposite angles = ∠A and ∠B = $x$

Exterior Angle = 100°

Exterior Angle Property states that the sum of interior opposite angles is the exterior angle.

$x+x=100$°

$2x = 100$°

$x=\frac{100}{2}$

$x=50$°

∠C = $y$

∠ACX = 100°

$y+100=180$

${y = 180 - 100}$

$y=80$

∠BAC and ∠ABC = 50°

∠ACB = 80°