Yes. Since the sum is 180 degrees, that set of three numbers is a perfectly good set of angles for a triangle.
It belongs to many many subsets including: {sqrt(13)}, The set of square roots of integers The set of square roots of primes The set of square roots of numbers between 12 and 27 {3, -9, sqrt(13)} The set of irrational numbers The set of real numbers
No. The square roots of 0.25 are 0.5 AND -0.5, the second of which does not belong to the set.
The hands of a clock at two o'clock are set at a 60 degree angle.
To answer this question I will use an example. Data set: 10, 20, 30, 40, 50. First find the sum of all the numbers...so 10+20+30+40+50= 150. Then you take the sum (150) and divide it by the number of numbers in the data set. So 150 divided by 5 (the number of numbers in this data set) = 30. 30= the mean of the above data set. Finding the mean is pretty simple. :)
draw line st parallel to line mn
A set square is used in geometry to draw parallel lines. It is also used to make sure that angles are drawn correctly. There are grooves in the set square where a pencil can be inserted to draw a line. There is also a hinge that allows for moving the two pieces of the set square to the proper angle before drawing.
90
answer:-to draw vetical and inclined lines
for drawing inclined lines
A protractor is used to draw a right angle of 90 degrees.
Because you use it to draw squares. Also if you put two together they make a square.
It is a set square
Draw a construction line (to be deleted) perpendicular to the lines you wish to draw. Lay one edge of the set-square (not the hypotenuse) along this line and draw one line using the other non-hypotenuse edge. Repeat this further up the construction line. Delete the construction line.
Yes. Since the sum is 180 degrees, that set of three numbers is a perfectly good set of angles for a triangle.
The answer is -123.15 C (approx.). The Kelvin scale starts at absolute zero and is used in scientific laboratories. Celsius is for general use and set 0 and 100 as melting and boiling point of water respectively. To convert from K to C, subtract 273.15 from K.
A set square? Only good for 30, 45, 60 amd 90 degree angles, though.