Which pair of triangles must be similar? (hint: try drawing the triangles in the space below) a. Triangles 1 and 2 each have a 35 angle. b. Triangles 3 and 4 are both isosceles. They each have a 40 angle. C. Triangle 5 has a 30" angle and a 90 angle, Triangle 6 has a 30 angle and a 70" angle. D. Triangle 7 has 50" angle and a 25" angle Triangle 8 has a 50 angle and a 105 angle.

Jessa bought a yoyo from a company that claims that, with each retraction, the string rolls up by 60% of the original length. she sets up a tape measure and throws the yoyo 3 times. her data are charted below. throw length of string (feet) 1 3 2 1.8 3 1.08 jessa wants to find the sum of the length of string after 10 throws. what is the sum of the lengths, rounded to the nearest hundredth?