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LenKa [72]
3 years ago
10

Are the triangles similar? How do you know? A. yes, by SAS B. yes, by SSS C. yes, by AA D. no

Mathematics
2 answers:
lord [1]3 years ago
8 0

Answer:

Option D is correct.

No, the triangles are not similar.

Step-by-step explanation:

AA postulates states that two triangles are similar if they have two corresponding angles equal.

Labelled the diagram as shown below:

We know that sum of all the measure of the angles in a triangle is 180 degree.

In triangle  ABC:

\angle A + \angle B + \angle C = 180^{\circ}

⇒30.4^{\circ}+84.6^{\circ}+\angle C = 180^{\circ}

⇒115^{\circ}+\angle C = 180^{\circ}

Subtract 115 degree from both sides we get;

⇒\angle C = 65^{\circ}

In triangle ABC and PQR

\angle A = \angle Q = 84.6^{\circ}

\angle C \neq \angle R

i.e 65^{\circ}\neq 66^{\circ}

⇒These triangles does not satisfy the AA postulates

Therefore, the given triangles are not similar.

WARRIOR [948]3 years ago
4 0
No, because 30.4+84.6+66=181
the sum of a triangle=180
so they are not similar. 
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