结果1 题目 In a triangle PQR, PQ = QR and PR = 15 cm. The height of the triangle is 12 cm. What is the area of the triangle PQR? A. 54 cm^2 B. 108 cm^2 C. 216 cm^2 D. 432 cm^2 相关知识点: 试题来源: 解析 B 反馈 收藏 ...
8=|PR-QR|<PQ<|PR+QR|=32 So the greatest possible length of PQ is 32
百度试题 结果1 题目In triangle PQR, = 5 cm, RQ= cm, and RPQ=60%a Find the length of [ 相关知识点: 试题来源: 解析 4PDa using the cosine 0= + 5-2Xxx5X 49=x+25-5x)C-5-24=0x-8)DC+3)0∴x二803= 反馈 收藏
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...
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...
百度试题 结果1 题目In the triangle PQR, (PQ)=a, (PR)=b. M is the midpoint of (PQ) and N lies on (PR) such that (PN): (PR)=1:4. Find in terms of a and b. (QN) 相关知识点: 试题来源: 解析 -a+ 15b 反馈 收藏
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 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...
As shown in the diagram(如图),the triangle PQR has PR=14cm and PQ=10cm.The side RQ produced meets the perpendicular PS at S,so that QS=5cm.The perimeter(周长) of triangle PQR is___cm.如图,在△PQR中,PR=14cm,PQ=10cm.过点P作PS⊥RQ交RQ的延长线于点S,QS=5cm,则△PQR的周长为___...
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