24 because 12 + 12 = 24 and and CD = DB
CB = CD + CB = 24 the triange ADC and ADB are equal
29.3938769134 ft
Take the radical of 864 to get an answer based on the limited info provided.
You could add up all the relative frequencies to make sure that you have 100% accounted for.
The relative frequency is the percent out of 100% for a particular item. If you have found the relative frequency for all items, it should equal 100%.