On the basis measurement of the angles, triangles are classified into three categories.
Acute Angle Triangle :
If all the angles of the triangle are less than 90˚, then the triangle is classified as an Acute Angle Triangle.
Right Angle Triangle :
If one of the angles is 90˚, then the triangle is classified as a Right Angle Triangle.
Obtuse Angle Triangle :
If one of the angles is greater than 90˚, then the triangle is classified as an Obtuse Angle Triangle.
Classify the following triangles by its angle measure.
Problem 1 :
Solution :
By observing the figure,
<A = 71˚, <B = 71˚, and, <C = 38˚
Since all the angles are less than 90˚, it is an
Acute Angle Triangle
Problem 2 :
Solution :
By observing the figure,
<A = 42˚, <B = 90˚, and, <C = 48˚
Since <B is 90˚, it is a
Right Angle Triangle
Problem 3 :
Solution :
By observing the figure,
<A = 40˚, <B = 40˚, and, <C = 100˚
Since <C is greater than 90˚, it is an
Obtuse Angle Triangle
Problem 4 :
Solution :
By observing the figure,
<A = 90˚, <B = 50˚, and, <C = 40˚
Since <A is 90˚, it is a
Right Angle Triangle
Problem 5 :
Solution :
By observing the figure,
<A = 87˚, <B = 55˚, and, <C = 38˚
Since all the angles are less than 90˚, it is an
Acute Angle Triangle
Problem 6 :
Solution :
By observing the figure,
<A = 15˚, <B = 135˚, and, <C = 30˚
Since <B is greater than 90˚, it is an
Obtuse Angle Triangle
May 21, 24 08:51 PM
May 21, 24 08:51 AM
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