Full Answer
How can you measure and classify an angle?
You measure the size of an angle with a protractor. Two angles with the same measure are called congruent angles. Congruent angles are denoted as A = B. Or could be shown by an arc on the figure to indicate which angles that are congruent.
What is a reflex measure of an angle?
Definition of reflex angle and examples A reflex angle is an angle whose measure is greater than 180 degrees but smaller than 360 degrees. For example, the reflex angle above is equal 225 degrees or 180 degrees + 45 degrees.
How do you measure an acute angle?
There are several methods to cut trim at angles without a miter saw :
- Carefully mark the angle to cut on the trim and cut it by hand using a back saw . …
- Mark the angle to cut and use a miter gauge on a table saw to make your cut .
- Mark the angle and cut with a hacksaw.
What is the radian measure of an angle?
Radian
- Radian definition. A radian is a measurement of angle based on the radius of a circle. ...
- Radian v.s degree. Degree is another unit of measure for angles, denoted by the symbol °. ...
- Radians in a full circle. The circumference of a circle is 2πr where r is the radius of the circle. ...
- Commonly used angles in radians. ...
What is the measure of angles rst?
Triangle RST is isosceles means that two of its angles are equal. (1) The measure of angle T is 100 degrees --> since no other angle can be equal to 100 degrees (because in this case the sum of the angles will be more than 180 degrees) then the other two angles, R and S, are equal: R=(180-100)/2=40. Sufficient.
What type of triangle is RST?
right triangle9 Given: Triangle RST has coordinates R(-1,7), S(3,-1), and T(9,2) Prove: RST is a right triangle [The use of the set of axes below is optional.]
What is the measure of angle for?
There are two commonly used units of measurement for angles. The more familiar unit of measurement is that of degrees. A circle is divided into 360 equal degrees, so that a right angle is 90°.
What is the length of AB?
AB = 7.35 cm.
What is the measure of arc XYZ?
35°In the diagram of circle A, the measure of ∠XYZ is 35°.
How do you find the degree measure of an angle?
Answer: The degree measure of the angle = Radian × (180/π) Let's see how we will use radian to find the degree.
Which angle is 45 degree?
right angleIn a right angle, the two arms are perpendicular to each other. When the right angle is divided into two equal parts each angle measures 45°.
What is the measure of an angle in RST?
Explanation. Given RST is an isosceles triangle and one measure of angle = 40 degrees. It could be that another angle also measures 40 degrees and the third angle of the triangle measures 100 degrees as sum of angles in a triangle add to 180 degrees.
What is the degree of RST?
1. Answer: D. RST is a triangle with two same edges and sides. So it’s degree will be 2e + x = 180. *there is a tale in this question, the two equal angels might be both 40 and the other angel 180 - 40* 2 = 100 or might be 70 and the third angel be 40. So there are two conditions, not one.
