D. All sides are parallel and all angles are reflex. 相关知识点: 试题来源: 解析 A。本题考查等边三角形的特征。等边三角形三条边相等且三个角也相等,选项 A 正确。选项 B 中 all sides are different(三条边不同)不符合等边三角形特征,且 all angles are acute(三个角都是锐角)虽然正确但不全面;...
Acute angle:angle measuring less than 90° Right angle:angle measuring exactly 90° Obtuse angle:angle measuring more than 90° Examples of Acute Angles Acute angles measure less than 90° Therefore, 67°, 45°, 23°, 52°, 86°, 14° are all examples of acute angles. ...
What are acute vertical angles? Angles Whenever lines, rays, or line segments intersect, angles are created. Angles are found in the area between the two intersecting lines, next to the point where they intersect. Depending on how the lines intersect, the angles will have different degree measu...
An angle is formed when two rays are joined at their endpoints. Angles are usually measured in degrees. Learn all types of Angles in Geometry with interesting concepts, solved examples, interactive worksheets & solutions with Cuemath
Acute Having all three interior angles measuring less than 90 degrees. An acute triangle 1 Acute (medicine) Of an abnormal condition of recent or sudden onset, in contrast to delayed onset; this sense does not imply severity, unlike the common usage. He dropped dead of an acute illness. 1...
In a right triangle, one of the acute angles is 30 degrees. What is the measure of the other acute angle? A. 30 degrees B. 45 degrees C. 60 degrees D. 90 degrees 相关知识点: 试题来源: 解析 C。解析:直角三角形两个锐角和为 90 度,一个锐角为 30 度,另一个锐角为 90 - 30 =...
In a right triangle, one of the acute angles measures 45 degrees. What is the measure of the other acute angle? A. 45 degrees B. 60 degrees C. 30 degrees D. 90 degrees 相关知识点: 试题来源: 解析 A。在直角三角形中,两个锐角的和是 90 度。已知一个锐角是 45 度,那么另一个锐角...
Acute angles are angles that are less than 90 degrees and obtuse angles are angles that are greater than 90 degrees but less than 180 degrees. Right angles also have special properties that make them easy to work with when solving geometry problems. For example, the legs of a right triangle...
“∠”. q2 what are the different types of angles? the different types of angles are: acute angle obtuse angle right angle reflex angle straight angle full angle q3 mention the properties of angles the two main important properties of angles are: the sum of all the angles on one side of...
There right angles, acute angles and obtuse angles. But no matter the angle, if it is an inside angle it is called and interior angle. Interior angles show up anywhere two lines meet. Definition of Interior When Tashmina was little, she wanted to decorate the inside of people's houses ...