What is congruancy?

Could the side lengths 9 15 and 10 represent a right triangle? Can a triangle be obtuse and a right triangle? Passing through 2 -7 and 5 2 in slope y intercept form? Bobby went to the store and bought 8 boxes of oranges The lightest box weighed 36.85 pounds The heaviest box weighed 42.15 pounds what could be the total weight of the orange boxe? How many grams in 6 and a half kg? Why mathematics the language to physics? How much sq meters is equal to 200000 sq ft? How long to go 625 miles at 70mph? What is 132 x 384? Is 1998 the best year to be born? What percent is 48 out of 65? Why in windows 2000 the current priority is always greater than or equal to the base priority? What is 4.29 percent as a fraction? What is the synonyms of few? Where is center of mass of a sphere? What is 275 minus 104? How do you but three and eight tenths in a decimal? In division the number that devides the dividend is called? What is two to the second power plus 4-30? What is the square root of candy?