Classify the following angles according to their types.
$89 °, 102 °, 181 °, 357 °, 1 °, 9 °, 222 °, 98 °, 347 °, 300 °, 99 °, 22 °, 199 °$

Open in App

Solution

The angles which are less than $90 °$ are known as Acute angles.
The angles which are less than $180 °$ but greater than $90 °$ are known as Obtuse angles.
The angels which are greater than $180 °$ are known as Reflex angles.
So just by looking at the angle, we can say which type of angle it is.
Acute Angles $\to 89 °, 1 °, 9 °, 22 °$
Obtuse Angles $\to 102 °, 98 °, 99 °$
Reflex Angles $\to 181 °, 357 °, 222 °, 347 °, 300 °, 199 °$

Suggest Corrections

Similar questions

Fill in the blanks with suitable answers.

(i) A triangle has ………. Vertices.

(ii) Triangles are grouped into ………. types according to their sides.

(iii) Triangles are grouped into ………. types according to their angles.

(iv) In a scalene triangle three sides are not ……….

(v) If one angle of a triangle is 90°, the triangle is said to be ………..

In each of the pictures below, draw aangle, according to the specifications:

(i) At the point A

(ii) At the point A with one side along OA

(iii) At the point A one side along AB

\frac{\sqrt{3} - \sqrt{2}}{\sqrt{3} + \sqrt{2}}

\frac{\sqrt{3} + \sqrt{2}}{\sqrt{3} - \sqrt{2}}

Join BYJU'S Learning Program