In quadrilateral ABCD, we have AB = 3, BC = 6, CD = 4, and DA = 4.
If the length of diagonal AC is an integer, what are all the possible values for AC? Explain your answer in complete sentences.
Notice that AC splits the quadrilateral into two pieces.
ABC is a triangle as well as ADC.
By the Triangle Inequality for triangle ABC, AC must be greater than 6-3=3 and less than 6+3=9. The values are between 4 and 8, inclusive.
By the Triangle Inequaliyt for triangle ADC, AC must be greater than 4-4=0 and less than 4+4=8. The values are between 1 and 7, inclusive.
Thus, the values in the intersection between the two inequalities are from 4-7 for 7-4+1=4 values that satisfy AC, namely 4, 5, 6, and 7 units.
sorry, i'm kinda new to this whole thing and I realized that I did that on accident :(
Notice that AC splits the quadrilateral into two pieces.
ABC is a triangle as well as ADC.
By the Triangle Inequality for triangle ABC, AC must be greater than 6-3=3 and less than 6+3=9. The values are between 4 and 8, inclusive.
By the Triangle Inequaliyt for triangle ADC, AC must be greater than 4-4=0 and less than 4+4=8. The values are between 1 and 7, inclusive.
Thus, the values in the intersection between the two inequalities are from 4-7 for 7-4+1=4 values that satisfy AC, namely 4, 5, 6, and 7 units.
Notice that AC splits the quadrilateral into two pieces.
ABC is a triangle as well as ADC.
By the Triangle Inequality for triangle ABC, AC must be greater than 6-3=3 and less than 6+3=9. The values are between 4 and 8, inclusive.
By the Triangle Inequaliyt for triangle ADC, AC must be greater than 4-4=0 and less than 4+4=8. The values are between 1 and 7, inclusive.
Thus, the values in the intersection between the two inequalities are from 4-7 for 7-4+1=4 values that satisfy AC, namely 4, 5, 6, and 7 units.