△ABC is mapped to △A′B′C′ using each of the given rules.
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The option third ∠R ≅ ∠V is correct because line segment RS and UV are parallel which is crossed by a transversal RV.
<h3>What is the similarity law for triangles?</h3>It is defined as the law to prove that the two triangles have the same shape, but it is not compulsory to have the same size. The ratio of the corresponding sides is in the same proportions and the corresponding angles are congruent.
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We have given two triangles:
Triangle RST and Triangle VUT
AS we can see Line segment RS and UV are parallel.
Which is crossed by a transversal RV.
The angle SRV = Angle RVU
Thus, the option third ∠R ≅ ∠V is correct because line segment RS and UV are parallel which is crossed by a transversal RV.
Learn more about the similarity of triangles here:
#SPJ1
Method One
Your calculator might be able to do this. Mine does it like this.
6
nCr
2
=
15
Method 2
You could simply set up 6C2
This gives you
Method Three
You only have to do this a couple of times to see how the cancellation works.
After all the cancellation takes place you have
6*5/2 = 15
Your calculator might be able to do this. Mine does it like this.
6
nCr
2
=
15
Method 2
You could simply set up 6C2
This gives you
Method Three
You only have to do this a couple of times to see how the cancellation works.
After all the cancellation takes place you have
6*5/2 = 15