1【题目】14. In the figure below, triangle ABC is divided into seven triangles. The areas of four of them are420 cm2, 80 cm2, 60 cm2 and 30 cm2 as shown. Find the area of triangle AEC.c420 反馈 收藏
As shown in the figure below, in triangle ABC, given that BC=5, AC=6, and AB=9.(1) Using Helen's formula to find the area of triangle ABC.(2) Find the inscribed circle radius r of triangle ABC.相关知识点: 试题来源: 解析 (1) 10√2 (2) r=√2 (1) BC=5, AC=6, and A...
百度试题 结果1 题目6In the figure below, ABC is a triangle. Identify the height of Triangle ABC when AC is the base. (3)X CB Y(1)BY(2)AY(3)BX(4) 相关知识点: 试题来源: 解析 (3) 反馈 收藏
In the figure above, triangle ABC is inscribed in the circle with center O and diameterAC. |fAB=AO what is the degree measure of∠ABO?(A)15°(B)30°(C)45°(D) 60° 相关知识点: 试题来源: 解析 B折:AB=A0OA=OB∴AB=OB=OA 三角形ABO是边三角形∴∠ABD=60° ...
6. In the figure below, ABC is a right triangle, AB=BC=14 cm, BE=BD=6 cm, find the area ofthe shaded region.A8cmEF6cmB 6cm D 8cmC 相关知识点: 试题来源: 解析 解:连接BF。S_(△ABD)=14*6÷2=42 (平方厘米), S_(△AEC)=8*14÷2=56 (平方厘米), S_(△AEF):S_(△BEF)=...
21 In the figure, in triangle ABC, DE is parallel to BC, DF is parallel to AC, and EF is parallel to A B. Given that the area of triangle PQF is 54 and the area of triangle ADE is 96, what is the area of triangle ABC?如图,△ABC中, DE∥BC , DF∥AC , EF//AB, 已知△PQF...
As shown in the figure below, in triangle ABC, DE//BC:(1)If AD=6, AB=15 and DE=8, fin
百度试题 结果1 题目6 In the figure below, ABC is a triangle. Identify the height of Triangle ABC when AC is the base. 3A XC Y(1)BY(2)AY(3)BX(4) 相关知识点: 试题来源: 解析 3 反馈 收藏
In the figure below, △ ABC is a right triangle with legs that measure x and 3x inches, respectively. What is the length, in inches, of the hypotenuse? ( ) A. √(10)x B. √3x C. √2x D. 2x E. 4x 相关知识点: 试题来源: 解析 A The correct answer is A. To solve, use ...
(b) What is the are a of Triangle BCF?C DG·B F E A←11.5 cm★Ans:(a)[2](b)[3] 相关知识点: 试题来源: 解析 a)Area of CDEF=(27÷3)×4=36Length of CD=36÷9=4b)Area of GEA=0.25×36=9Area of CBA=0.5×11.5×9=51.75Area of CFD=27+9=36Area of BCF=51.75-36=15.75 ...