aRight triangle PQR is to be constructed in xy-plane so that the right angle is at P and PR is parallel to the x-axis. The x- and y-coordinates of P< Q, and R are to be integers that satisfy the inequalities-4 正三角形PQR将被修建在X - Y飞机,以便直角在P,并且PR与X轴是平行的...
aRight triangle PQR is to be constructed in the xy-plane so that the right angle is at P and PR is parallel to the x-axis. The x-and y-coordinates of P, Q, and R are to be integers that satisfy the inequalities -4≤x≤5, 6≤y≤16. How many different triangles with these pro...
Right triangle PQR is to be constructed in the xy-plane so that the right angle is at P and PR is parallel to the x-axis.The x-and y-coordinates of P,Q,and R are to be integers that satisfy the inequalities -4≤x≤5,6≤y≤16.How many different triangles with these properties co...
right triangle, 直角三角形， P为直角点，对应位置坐标共有10*11， Q有10种（除了P的位置），R有9...
Right triangle PQR is to be constructed in the xy-plane so that the right angle is at P and is parallel to the x-axis. The x- and y-coordinates of P, Q, and R are to be integers that satisfy the inequalities-4 ≤ x≤ 5and 6≤y≤16. How many different triangles with these pr...
Problem Solving_Right triangle PQR is to be constructed in the xy-plane so that the right angle is at P and is parallel to the x-axis. The x- and y-coordinates of P, Q, and R are to be integers that satisfy the inequalities -4 ≤ x ≤ 5 an
An isosceles triangle with a right angle is known as an isosceles right triangle. We will be studying about the properties and formulas of isosceles right triangle along with examples in this article.
RighttrianglePQRistobeconstructedinthexy-planesothattherightangleisatPandPRisparralleltothex-axis.Thex-andy-coordinatesofP,Q,andRaretobeintegersthatsatisfytheinequalities-4<=x<=5,6<=y<=16,howmanydifferenttriangleswiththesepropertiescouldbeconstructed?A.110B.1100C.9900D.10000E.12100 点击查看答案 ...
解:∵D,E,F分别为\triangle PQR三边QR,RP,PQ的中点,∴ \overrightarrow{EQ}+ \overrightarrow{FR}= \overrightarrow{PQ}- \overrightarrow{PE}+ \overrightarrow{PR}- \overrightarrow{PF}= \overrightarrow{PQ}- \dfrac {1}{2} \overrightarrow{PR}+ \overrightarrow{PR}- \dfrac {1}{2} ...
如图,圆O是边长为4的正方形ABCD的内切圆,\triangle PQR是圆O的内接正三角形,当\triangle PQR绕着圆心O旋转时, \overrightarrow{AQ}\cdot \overrightarrow{OR}的最大值是( ) A. A. \(2+4 \sqrt {2}\) B. B. \(1+2 \sqrt {2}\) C. C. \(-1+2 \sqrt {2}\) D. D. \(-2+4 \...