Jaquezantonio947idn
Answered

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In AABC, what is the measure of angle B?
B
(2x)
(x + 2)
140°
A
с
O 46°
O 489
O 70°
O 920

In AABC What Is The Measure Of Angle B B 2x X 2 140 A С O 46 O 489 O 70 O 920 class=

Sagot :

MiaoyanWuidn

Answer:

92°

Step-by-step explanation:

∠C=180-140=40

∠A+∠B+∠C=180

40+2X+X+2=180

X=46

∠B=46*2=92°

Answer: 92 degrees

Step-by-step explanation:

The exterior angle measuring 140 is equal to the sum of the two remote interior angles.

(X+2) + (2x) = 140. Combine like terms.

2 + 3x = 140. Subtract 2 from both sides.

3x = 138. Divide both sides by 3.

X = 46

Angle b = 2x. Substitute 46 in for x.

Angle b = 2(46)

Angle b = 92

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