28In the figure below, ABC is a right-angled triangle. EF is parallel to GH.Find ∠BCH.E77°50°B GC H∠ACB =180°-90°-50°=40°∠ACH =77°∠BCH =77°-40°=37°37ūAns:O 相关知识点: 试题来源: 解析 ∠ACB=180°-90°-50°=40° ∠ACH=77° ∠BCH=77°-40°=37°37 ...
9 In the figure below, ABC is a right-angled triangle. BCD and BFE are straight lines. ZBAF is 27. ∠AFB is 77° and ZEDB is 84°.Find ∠BED.A E77°F84%B CD 相关知识点: 试题来源: 解析 ∠ABF=180-77-27°=76°∠EBD=90°-76°=14°∠BED=180°-14°-84°=82° ...
百度试题 结果1 题目 ABC is a right angled triangle A50cm AB =50cm and ACB =16°Find AC16°(50)/(sin16)=181.4cm 相关知识点: 试题来源: 解析 ==181.4cm 反馈 收藏
6ΔABC IS A RIGHT-ANGLED TRIANGLE WITH∠BCA=90°.THE MEDIAN CM IS PERPENDICULAR TO MEDIAN BN.IF BC =1,WHAT IS THE LENGTH OF BN. 相关知识点: 试题来源: 解析 (1).作DE⊥BC于E.∵BD=DC,∴DE是BC的中垂线. 设AD=x.∵AC2=FC×BC,∴BC=(1+x)2.∵AC/BC=(BC/2)/CD,∴(1+x)/...
Triangle (ABC) is a right angled triangle. Also (AC=5), (CB=3) and angle (ADB) is a right angle.What is the length of (DB)? 相关知识点: 试题来源: 解析 (2.4) This is another special triangle problem. The hypotenuse =5, one leg =3, so the other leg ((AB)) =4Now ...
is a right-angled triangle and ∠ABC=90∘, if the distance from B to the mid-point of AC is 6cm, find the maximum value of the area of △ABC. 已知△ABC是一个直角三角形且∠ABC=90∘,若B点与AC的中点的距离为6厘米,求△ABC的面积的最大值.相关...
the triangles ABC and AKL respective-ly.Show that S2T.(HEL)5.在直角△ABC中,AD是斜边BC上的高,过△ABD的内心与△ACD的内心的直线分别交边AB和AC于K和L,△ABC和△AKL的面积分别记为S和T.求证:S≥2T.(希腊)5.ABC is a triangle right-angled at A,and D is the foot of the altitude from A...
In the given figure, ABC is a right angled triangle.∠ABC=900and∠ACB=600. If the radius of the smaller circle is 2 cm, then what is the radius (in cm) of the larger circle? View Solution In a triangle ABC, right angled atB, then ...
ABC is a right-angled triangle with AB = 6 cm and BC = 8 cm. A circle with centre O has been in scribed inside DeltaABC. The radius of the circle is
Click here:point_up_2:to get an answer to your question :writing_hand:abc is a triangle right angled at ca line through the midpoint m of hypotenuse