In GHI, the measure of ZI=90°, GH = 98 feet, and HI = 77 feet. Find the measure of ZH to the nearest tenth of a degree.

Of four points are collinear, they are also coplanar

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Starting at home, emily traveled uphill to the hardware store for 606060 minutes at just 666 mph. she then traveled back home along the same path downhill at a speed of 121212 mph. what is her average speed for the entire trip from home to the hardware store and back?