Answer:
3. ST ≅ TS is a reflexive property
4. SSS (as we have just proved that all 3 corresponding sides are congruent)
Step-by-step explanation:
3. ST ≅ TS is a reflexive property
4. SSS (as we have just proved that all 3 corresponding sides are congruent)
A and B, though B would be the best choice, because they all have an edge that is straight.
Answer:
Since we know that ΔPQR is a right triangle, we can also asume that:
sin R = cos P = 3/5
So the answer is (d).
* This formular can also be applied to other right triangles.
In a right triangle, sine of one acute angle will always be equal to cosine of the other acute angle.
And we can check this by actually finding cos P using the lengths of the sides, by calculating PR first:
PR = √(PQ² + RQ²) = √(12² + 16²) = 20
=> cos P = PQ/PR = 12/20 = 3/5
Everything you need to do for this question is everything you do to one side you do it to the other