What is British standard 2769?

What triangle must always have at least one angle bisector that is also a perpendicular bisector? This sort of triangle has two equal sides and 2 equal angles? How many sides does sides a decagon have? How do you write the standard number 4752000000 in scientific notation? Square feet per cubic yard? What goes into what equally? Why do solids have a defenite shape? What do you times 350 by to get 1000? How do you get the answers 1 to 20 with only 4 four's? What is symbolic about roman numeral 2 tattoo on right wrist Not gemini symbol though? Do 2 prime numbers always get a composite number? How much is thirty percent off of 6.99? What are the prime numbers between 1 and 90? What is the shape molecular geometry of SiO2? How much force is needed to accelerate a 1000 kg car 5 MS? How many significan figures are in 0.00001? What is the next composite number after 8? What size is 181 cm in inches? If you were born in 1970 how old would you be? Who came up with using the letters x and y to represent points on a coordinate plane?