单选题If A (-1, 1) and B (3, -1) are the endpoints of one side of square ABCD, what is the area of the square?A12B16C20D25E36
单选题
If A (-1, 1) and B (3, -1) are the endpoints of one side of square ABCD, what is the area of the square?
A
12
B
16
C
20
D
25
E
36
参考解析
解析：
根据距离公式可得：AB²=（-1-3）²+（1-（-1））²=20，而AB又是正方形ABCD的边长，所以正方形的面积为AB²=20.
根据距离公式可得：AB²=（-1-3）²+（1-（-1））²=20，而AB又是正方形ABCD的边长，所以正方形的面积为AB²=20.
相关考题：
多选题Although most land snails are ______, the giant African snail is a notable exception; it can be 15 inches long and weigh 2 pounds.AgargantuanBjuvenileCfunctionalDdiminutiveEresponsiveFminuscule
多选题Frederick Law Olmsted’s design of New York’s Central Park was ______ in part by the designer’s visit to England’s Derby Arboretum in 1859AfacilitatedBinspiredCconceivedDacceleratedEinfluencedFstructured
多选题Pseudonyms are used for a variety of reasons, mostly ______; for example, to deny, an actor’s ethnicity, to conceal an author’s gender, or to hide a revolutionary’s true identity.AcovertBexplicitCclandestineDcounterfeitEsurrealFmigratory
多选题Consider each of the choices separately and select all that apply. According to the passage, which word or words might describe Rohmer’s style?ADynamicBDialogue-drivenCPhilosophical
多选题The distinctive qualities of African music were not appreciated or even ______ by Westerners until fairly recently.AdeprecatedBdiscernedCignoredDreveredEremarked onFneglected
单选题The raised artificial islands known as crannogs, built in medieval times in Ireland and Scotland, ______ consist of post palisades sunk into the lake.AcurrentlyBtypicallyCcursorilyDimprudentlyEespecially
单选题After World War I, League of Nations mandates divided Cameroon, ______ a German colony, between France and England.AruledBcovertlyCbecomingDperhapsEpreviously
多选题If p and q are primes greater than 2, which of the following statements must be true? (Indicate all such statements.)Ap + q is evenBpq is oddCp2-q2 is even
问答题Select the sentence within the paragraph that describes why sales of Edison’s concrete furniture turned out to be unsuccessful.
单选题According to the passage, all of these are true EXCEPT ______.APurple loosestrife propagates through an underground system.BPurple loosestrife has even affected the survival of fish.CPurple loosestrife is best eradicated through controlled burning.DPurple loosestrife is sometimes found in urban areas.EPurple loosestrife is found in the wetlands of most states.
单选题In triangle ABC, what is the value of y?A35°B50°C65°D75°E70°