context: Irbid is a Jordanian city, and the center of Irbid Governorate is in northern Jordan and its largest city. It is located 71 km north of the capital, Amman, and about 20 km south of the Syrian-Jordanian border. It is the third largest city in the Kingdom after the Jordanian capital and Zarqa in terms of population, with a population of the city and its suburbs more than 530 thousand people, according to the census of 2017, and the area of ​​the city with its suburbs is estimated at 30 km2. The city is located in an average location in relation to the rest of the governorate, as it is located at 32 degrees north latitude and 35 degrees east longitude. The geographical nature of the city is characterized by the plain nature, although the western regions of it have a nature closer to the mountainous nature [1].
question: What is the area of ​​the city of Irbid?
answers.text: 30 km2