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Greg and Lu are building a toy hydraulic crane, as shown in the picture.
What is m∠ABC?
A) 100°
B) 115°
C) 120°
D) 135°

Greg and Lu are building a toy hydraulic crane as shown in the picture What is mABC A 100 B 115 C 120 D 135 class=

Respuesta :

SchwarzschildRadius
So,

Notice that there is a triangle with two of the angles given.  We know that the sum of any triangle's angles will always be 180°.  Thus, we can subtract the two given angles from 180, and that will give us the measure of angle ABC.

180 - 20 - 25 = 160 - 25 = 135

The measure of angle ABC is 135°.

The correct option is D.
carsonmcpherson

Answer:

D

Step-by-step explanation:

credit goes to the one that answered it


Notice that there is a triangle with two of the angles given.  We know that the sum of any triangle's angles will always be 180°.  Thus, we can subtract the two given angles from 180, and that will give us the measure of angle ABC.


180 - 20 - 25 = 160 - 25 = 135


The measure of angle ABC is 135°.


The correct option is D.

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