Felicity has 20 thin rods whose lengths, in centimeters are 1, 2, 3 …., 20. Any two rods can be connected at their ends. Felicity selects three rods to make a triangle, then three other rods to make a second triangle and so on. a. Only 1 of Felicity's rods cannot be the side of a triangle. Determine which one.
b. Felicity wants to use 18 rods to form a set of six triangles with equal perimeters. Either find such a set or explain why no such set exists.

Ihave a 69 and an 82. the 69 is worth 40% of my grade and the 82 is worth 15%. can someone tell me my current average grade.

Joel wants to buy a new tablet computer fram a store having a 20% off sale on all tablets. the tablet he wants has an original cost of $190. he also wants to make sure he has enough money to pay the 5% sales tax. part one joel uses the incorect expression 0.95(190)(0.8) to calculate that the tablet will cost him a total of $144.40. describe his error and write the correct expression part two how much will joel pay for the tablet show your work if you answer this question correctly you will receive a prize of 99 points good luck

Is the figure congruent? yes or no?