In Your Home. A pair of tweezers, the tip of a Chihuahua ear, salad tongs, a miter box, some houseplant leaves and a pair of open scissors can create an acute angle within your home. The architectural pitch of an A-frame house is an acute angle as is the play, rewind and fast-forward buttons on the DVD remote control.

Number of Sides

• A three-sided polygon is a triangle.
• A triangle with only acute internal angles is called an acute (or acute-angled) triangle.
• Each of these will also be either equilateral, isosceles or scalene.
• A regular polygon has equal length sides with equal angles between each side.

A rectangle has no acute angles. Each side of a rectangle is parallel to the side opposite it.

1 Answer. The trapezoid has two acute angles and two obtuse angles. However, if this is a right trapezoid, There would be one acute angle, two right angles and one obtuse angle.

Aristarchus of Samos and Hipparchus seem to have been among the first Greek scientists to exploit Babylonian astronomical knowledge and techniques systematically. Timocharis, Aristarchus, Aristillus, Archimedes, and Hipparchus were the first Greeks known to divide the circle in 360 degrees of 60 arc minutes.

A circle (a complete rotation) is 360 degrees. Look at 1/4 of a circle. A 90° angle is called a right angle.

Answer. Any line through it will form four angles (two on either side of the straight angle). Additionally, any two contiguous angles must be supplementary or equal 180 degrees. A line perpendicular to a straight angle forms two right angles.

To make 270 degrees, we would need to put together three 90 degree angles.

angle of 270 degree

1. Draw a line AB.
2. take a point O on it.
3. through O draw an angle of 90 degrees on the negative y axis.
4. since , 270 ° = 180° + 90°
5. construction of 90 degrees.
6. make a semi circle XY.
7. through X and radius is more than half mark an arc.
8. similarly with Y and equal radius mark an arc which cuts the previous arc and join the line.

Convert 270 Degree to Circle

We can also change the equation 180 degrees = pi into a fraction equal to 1. So 1 = pi/180, we can multiply any degree measurement by this fraction to change from degrees to radians. For example, 270 degrees multiplied by pi/180, we get 270 pi/180, which is 27/18.

A circle has 360 degrees. One degree of a circle, therefore, is 1/360. 1/4 of a circle would equal 90 degrees (1/4 of 360 = 90).

Now, since we know that Pi =180◦, we can use a general formula that is degrees x PI()/180 to get the radians figure. For example, 45◦ x PI()/180 is equal to 0.7854 radians. If we enter the formula =DEGREES(PI()), we will get the result as 180◦.

Well if an entire circle is 2π⋅r half will be only π⋅r but half a circle corresponds to 180° ok… Your arc length, for half circle, we saw that was π⋅r dividing by r …you get π radians!!!!!!

Calculus is always done in radian measure. Degree (a right angle is 90 degrees) and gradian measure (a right angle is 100 grads) have their uses. Radians make it possible to relate a linear measure and an angle measure. A unit circle is a circle whose radius is one unit.

From the latter, we obtain the equation 1 radian = (180π)o . This leads us to the rule to convert radian measure to degree measure. To convert from radians to degrees, multiply the radians by 180°π radians .