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stira [4]
3 years ago
8

If triangle abc is congruent with triangle DEF, then the measure of angle b is:

Mathematics
2 answers:
gladu [14]3 years ago
6 0
Which property of congruence whould prove BD ≡ BD?

The triangle ABD and CBD has the same side = BD
Because they get the same side, they applied to the rule "reflexive property".
If you look at ABD, CBD, they are reflecting each other like a mirror.

The answer is first option
inn [45]3 years ago
3 0
Hey! Let me help you on this one.

First of all, let's examine these two triangles.

Yes, they are indeed congruent. For example, angle D is congruent to angle A.

In order for us to find measures of angle B, let's find the measure of its congruent angle - E

In order for us to find it, we need to know that if we add all the measures of angles, we will get 180. 

74+50+x=180

Now, let's solve this

x= 180-74-50

Simplify it.

X= 56

As we can see, E is set at 56 degrees, meaning that the angle congruent to it is also set at 56 degrees.

Answer: Measure of angle B is 56 degrees.
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