I'm stuck on this problem... anybody know what the answer is?
1 answer:
Angles A and D would have to be congruent in order to prove SAS Similarity Theorem.
“The SAS Similarity Theorem states that if two sides in one triangle are proportional to two sides in another triangle and the included angle in both are congruent, then the two triangles are similar.” (Source: cK-12)
This graphic may help you understand my choice of answer. It shows SAS Similarity Theorem in an alternate example.
“The SAS Similarity Theorem states that if two sides in one triangle are proportional to two sides in another triangle and the included angle in both are congruent, then the two triangles are similar.” (Source: cK-12)
This graphic may help you understand my choice of answer. It shows SAS Similarity Theorem in an alternate example.
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Given:
The measure of three sides of a triangle are 8, 7 and 14.
To find:
The measure of the angle opposite the side of length 8.
Solution:
According to the Law of Cosine:
Let a=8, b=7 and c=14, then by using Law of Cosine, we get
Taking cos inverse on both sides.
Therefore, the measure of the angle opposite the side of length 8 is 22.6 degrees.