Where in the world?
The flag of Tanzania features a yellow-edged black diagonal band that extends from the lower hoist-side corner to the upper fly-side corner of the field. Above and beneath this band are a green and light blue triangle respectively.

Tanzania

Native Name: United Republic of Tanzania
Population: 59,734,213
Region: Africa
Sub Region: Eastern Africa
Capital: Dodoma
Top Level Domain: .tz
Currencies: Tanzanian shilling
Languages: English
Border Countries: BDICODKENMWIMOZRWAUGAZMB