Question: Sege is located in the district that covers a surface of what area?

Context paragraphs:
Sege: Sege is one of the constituencies represented in the Parliament of Ghana.  It elects one Member of Parliament (MP) by the first past the post system of election.  Sege is located in the Dangme East district of the Greater Accra Region of Ghana.

Iowan erosion surface: The Iowan Erosion Surface (IES) is a geographic region located mostly in northeastern Iowa and extends into southeastern Minnesota.  The IES has been a center of controversy for Quaternary workers due to its topographic relief and other elements. ) .  Early workers proposed the notion that the surface was a glacial deposit between the early Wisconsin and Illinoian stages.  In 1968, Ruhe proposed that this area underwent a dramatic erosive event during the Late Wisconsin.  Most of the region is underlain by pre-Illinoian till, with an age of greater than 0.5 Ma.  A thin blanket of Late Wisconsin aged loess covers the till in some places.  The relief of the IES is a generally subdued with broad interfluves and oversized valleys.  Elliptical hills called paha stand above the landscape and have an orientation of NW-SE (northwest to southeast).

Dangme East District: The Dangme East District is one of the ten (10) districts in the Greater Accra Region of Ghana, and covers a surface of 909 km².  Major Towns in the district are Big Ada and Ada Kasseh.  Ada Foah, which is the district capital, is located at the beach and river estuary.  Most of the inhabitants (85.9%) belong to the cultural group of the Dangme.  It has a population of 71,671.

Maimarktgelände: The Maimarktgelände (English: May Market area) is an exhibition site located in Mannheim, Germany, which covers a surface of 210,000 m².  It hosts the annual Mannheim May Market as well as open-air concerts and other events.  Starting in February each year, 47 exhibition halls with a surface of 42,000 m² are developed on the apron of the site.  With approximately 1,500 exhibitors and around 400,000 visitors annually, the Maimarktgelände is a major German regional exhibition.

Lake Whillans: Lake Whillans is a subglacial lake in Antarctica.  The lake is located under the Whillans Ice Stream at the southeastern edge of the Ross Ice Shelf in the west of the continent.  The lake surface is 800 m beneath the surface of the ice and the lake covers an estimated area of 60 km2 .  Lake depths measured thus far have been around 2 m .  Its temperature is −0.49 °C, below 0 °C because of the high pressure.

Ada Kasseh: Kasseh is a town in the Ada East district, a district in the Greater Accra Region of Ghana.  It is a major town located between Sege and Sogakope on the Accra-Aflao road.  Kasseh has the biggest market in four districts(Ada West, Ada East, South Tongu and North Tongu) in its area.  Kasseh is connected to almost all the towns and villages in the Ada East district by road or path.  It is the most easily accessible town in the district.  It is connected by road to the district capital town of Ada Foah and the Town called Big Ada.

Antarctic: The Antarctic (US English , UK English or and or ) is a polar region, specifically the region around the Earth's South Pole, opposite the Arctic region around the North Pole.  The Antarctic comprises in the strict sense the continent of Antarctica and the island territories located on the Antarctic Plate.  In a broader sense the Antarctic region include the ice shelves, waters, and island territories in the Southern Ocean situated south of the Antarctic Convergence, a zone approximately 32 to wide varying in latitude seasonally.  The region covers some 20% of the Southern Hemisphere, of which 5.5% (14 million km) is the surface area of the Antarctic continent itself.  All of the land and ice shelves south of 60°S latitude are administrated under the Antarctic Treaty System.  In a biogeographic sense, the Antarctic ecozone is one of eight ecozones of the Earth's land surface.

Great Salt Lake: The Great Salt Lake, located in the northern part of the U.S. state of Utah, is the largest salt water lake in the Western Hemisphere, and the eighth-largest terminal lake in the world.  In an average year the lake covers an area of around 1700 sqmi , but the lake's size fluctuates substantially due to its shallowness.  For instance, in 1963 it reached its lowest recorded size at 950 square miles (2,460 km²), but in 1988 the surface area was at the historic high of 3300 sqmi .  In terms of surface area, it is the largest lake in the United States that is not part of the Great Lakes region.

Muar (town): Muar (موار) is a historical town and the capital of Muar District, Johor, Malaysia.  It is one of the most popular tourist attractions in Malaysia to be visited and explored for its food, coffee and historical buildings from the pre-war.  An alternative name to it is Bandar Maharani.  It is declared the Royal City of Johor by Sultan Ibrahim Sultan Iskandar and is the fourth largest city (after Johor Bahru, Batu Pahat and Kluang) in Johor.  It is the main and biggest town of the bigger entity region or area of the same name, Muar which is sub-divided into the Muar district and the new Ledang district, which was upgraded into a full-fledged district from the Tangkak sub-district earlier.  Muar district as the only district covering the whole area formerly borders Malacca in the northern part.  Upon the upgrading of Ledang district, the Muar district now covers only the area south of Sungai Muar, whilst the northern area beyond the river is in within Ledang district.  However, both divided administrative districts are still collectively and fondly called and referred to as the region or area of Muar as a whole by their residents and outsiders.  Currently, the new township of Muar is located in the Bakri area.

Sebago Lake: Sebago Lake is the deepest and second largest lake in the U.S. state of Maine.  The lake is 316 ft deep at its deepest point, with a mean depth of 101 ft , covers about 45 sqmi in surface area, has a length of 12 mi and a shoreline length of 105 mi .  The surface is around 270 ft above sea level, so the deep bottom is below the present sea level.  It is located in Cumberland County, Maine, and bordered by the towns of Casco, Naples, Raymond, Sebago, Standish and Windham.  The seasonally occupied town of Frye Island is on an island in the lake.

Supporting paragraphs: Sege Dangme East District
Answer: 909 km²