Which best models a plane?1)a floor2)a pebble3)a jump rope4)a stick
2 answers:
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Answer:
See explanation
Step-by-step explanation:
Given
According to the order of the vertices,
- side AB in triangle ABC (the first and the second vertices) is congruent to side AD in triangle ADC (the first and the second vertices);
- side BC in triangle ABC (the second and the third vertices) is congruent to side DC in triangle ADC (the second and the third vertices);
- side AC in triangle ABC (the first and the third vertices) is congruent to side AC in triangle ADC (the first and the third vertices);
- angle BAC in triangle ABC is congruent to angle DAC in triangle ADC (the first vertex in each triangle is in the middle when naming the angles);
- angle ABC in triangle ABC is congruent to angle ADC in triangle ADC (the second vertex in each triangle is in the middle when naming the angles);
- angle BCA in triangle ABC is congruent to angle DCA in triangle ADC (the third vertex in each triangle is in the middle when naming the angles);
First, simplify
Second, find the least common denominator of
Third, make the denominators the same as the least common denominator (LCD). Your problem should look like:
Fourth, simplify to get the denominators the same. Your problem should look like:
Fifth, join the denominators. Your problem should look like:
Sixth, simplify. Your problem should look like: