A high school principal is starting an in school peer to peer tutoring program at a school. In order to measure?the effectivenes
s of the program, SHE randomly selects 80 kids of approximately the same academic level and assigns half of them to attend the peer-to-peer tutoring program; the other half are placed in a study hall for quiet individual homework. She wants to see if there is any difference in educational?outcomes between the two groups. What type of data source is this?
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Below is an image of what you have described. Since EF intersects GH perpendicularly - all resulting angles will be 90° by the definition of intersection of perpendicular lines.
This is to say that, Angle GDE, GDF, HDF, and HDE are all 90° angles.
