题目A right angle measures exactly ___ degrees. A. 45 B. 60 C. 90 D. 120 相关知识点: 试题来源: 解析 C。本题考查直角的度数。直角的度数是 90 度,A 选项 45 度是锐角,B 选项 60 度也是锐角,D 选项 120 度是钝角。反馈 收藏
denoting an angle that is exactly 90 degrees. This term is most commonly used in geometry, but it can also be applied to other areas such as photography, carpentry, and engineering. In each of these fields, right angles
A right angle refers to an angle that is exactly 90 degrees. It comes into existence when two straight lines intersect each other at 90 degrees. In here, two straight lines are perpendicular to each other at the intersection. This angle is a vital part o
Right angles are all angles that are exactly 90 degrees and the most obvious in geometry is the triangle. Learn the definition of a right angle and explore the and notation and formula for right angles using the Pythagorean theorem, which relates all sides of a triangle to one another. Def...
They can be acute (less than 90 degrees), obtuse (greater than 90 degrees), straight (exactly 180 degrees), or right (exactly 90 degrees). Understanding angles is important for solving problems involving geometry, trigonometry, and other mathematical and scientific concepts. ...
If the sum of two angles is 90 degrees, the angles are called complementary angles. If the sum of two angles is 180 degrees, the angles are called supplementary angles. The sum of three angles in a triangle is always 180 degrees.
Right angles are all angles that are exactly 90 degrees and the most obvious in geometry is the triangle. Learn the definition of a right angle and explore the and notation and formula for right angles using the Pythagorean theorem, which relates all sides of a triangle to one another. Relat...
They have four interior angles that measure 360 degrees. What is a right angle? A right angle measures exactly 90 degrees. They are formed by two perpendicular lines that meet or intersect one another.What is a Right Angle? An angle is the measurement of the space that is formed between ...
1.You slant the pen with an angle of 30 degrees on the paper when you're writing. 你书写的时候笔身是倾斜的,和纸张形成30度的倾角。 2.This new producer who calls himself Holy Other pretty much seals the deal for us, making it four essential artists from Tri Angle in less than a year...
In geometry, an acute angle is an angle that is less than 90 degrees. It is usually represented by the lowercase letter 'a' with a line over it, or the symbol ?. Acute angles are the exact opposite of right angles, which measure exactly 90 degrees. An acute triangle is a triangle ...