A semicircle is inscribed in the triangle as shown. What is the radius of the semicircle?( ).B5A C12 A.76 B.135 C.5918 D.103 E.6013 2【题目】In the right triangle ABC, AC=12, BC=5, andangle C is a right angle. A semicircle isinscribed in the triangle as shown. Whatis the...
3. The two tangents to the incircle of a right-angled triangle ABC that are perpendicular to the hypotenuse AB intersect the hypotenuse a P and Q. Find angle PCQ. 相关知识点: 试题来源: 解析 Solution : Let I be the incenter of triangle ABC , Then ∠ CBI=∠ABI . Let the extension ...
搜索智能精选题目【题目】专项单词汇总角angle直角right angle直角三角形right triangle(1) InΔABC , AB=BC=29, and AC=42. What isthe area of △ABC?A.100B.420C.500D.609E.701答案【解析】C
搜索智能精选 题目专项单词汇总:角angle直角right angle直角三角形right triangle(1) In △ABC, AB=BC=29, and AC=42. What is the area of △ABC?A.100B.420C.500D.609E.701 答案C
In a right triangle, the side opposite the right angle is called the ___. A. hypotenuse B. leg C. base D. height 相关知识点: 试题来源: 解析 A。在直角三角形中,直角所对的边叫斜边“hypotenuse”;“leg”是直角边;“base”是底边;“height”是高。所以选 A。 反馈 ...
In the right—;angled triangle (with the right angle in ) the angle bisectors of the acute angles intersect at point . The distance of to the hypotenuse is . What is the distance of to ? A: B: C: D: E: 相关知识点:
We can find anunknown anglein aright-angled triangle, as long as we know the lengths oftwo of its sides. Example The ladder leans against a wall as shown. What is theanglebetween the ladder and the wall? The answer is to useSine, Cosine or Tangent!
结果1 题目 专项单词汇总:角angle直角right angle直角三角形right triangle(1) In △ABC, AB=BC=29, and AC=42. What is the area of △ABC? A. 100 B. 420 C. 500 D. 609 E. 701 相关知识点: 试题来源: 解析 C 反馈 收藏
In triangle ABC, AB=13, BC=14, and CA=15. Distinct points D, E, and F lie on segments \overline{BC}, \overline{CA} and \overline{DE} respectively, such that \overline{AD}\bot\overline{BC}, \overline{DE}\bot\overline{AC}, and \overline{AF}\bot \overline{BF} The length of ...
结果1 题目 In \triangle ABC, D is a point on side \overrightarrow{AC} such that BD=DC and \angle BC D measures 70{}^\circ . What is the degree measure of \angle ADB?( )∠A A. 100 B. 120 C. 135 D. 140 E. 150 相关知识点: 试题来源: 解析 D略. 反馈 收藏 ...