Mr. Ortiz used similar triangles to make a design. Which statement about the triangles in the design is must be true? A. They are the same size and shape

B. They are the same size but different shapes

C. They have corresponding angles that are congruent

D. They have corresponding sides that are congruent

Please help I need to pass by Monday.

The stem-and-leaf plot shows the heights in centimeters of teddy bear sunflowers grown in two different types of soil. soil a soil b 5 9 5 2 1 1 6 3 9 5 1 0 7 0 2 3 6 7 8 2 1 8 3 0 9 key: 9|6 means 69 key: 5|8 means 58 calculate the mean of each data set. calculate the mean absolute deviation (mad) of each data set. which set is more variable? how do you know?