Question

if we draw a triangle lmn, where lm = 4.5 cm, mn = 5 cm and nl = 4.5 cm.
what type of triangle is this​

Answer 1

This is is isosceles triangle

Answer 2

As two sides of Triangle are of Equal length hence, Triangle LMN is Isosceles.  if LM is 4.5 cm, MN Is 5 cm, NL is 4.5 cm

Given:

• A triangle LMN with following sides
• LM = 4.5  cm
• MN = 5 cm
• NL = 4.5 cm

To Find:

• Type of Triangle

Solution:

Triangle is a polygon with 3 sides

Types of Triangles based on side length:

• Equilateral Triangle:  All sides are of Equal length
• Isosceles triangle: Two sides of triangle are of equal length
• Scalene triangle : All sides of the the triangle are of equal length

Notice that in the given triangle LMN

4.5 = 4.5 ≠ 5

LM = NL   ≠ MN

As two sides of Triangle are of Equal length hence, Triangle is Isosceles.

Additional Info:

Type of Triangles based on angle:

Right angle Triangle: One of the angle measure 90°

Acute angle Triangle : All three angles measure less than 90°

Obtuse angle Triangle : One of the  angle measure greater than 90°