11_diagonal_street | location | south_africa <tsp> south_africa | capital | cape_town <tsp> south_africa | leadername | jacob_zuma <tsp> south_africa | ethnicgroup | asian_south_africans <sep> 11 diagonal street is an office tower in johannesburg, south africa it was built in 1983 to a height of 80 metres it is designed to look like a diamond as it reflects different views of the central business district from each angle of the buildingthe building's architect was helmut jahn 
one of the ethnic groups of south africa. where the leader is jacob zuma. are the asian south africans. the capital city is cape town and 11 diagonal street is located within the country.11 diagonal street is an office tower in johannesburg, south africa