Question

How many triangles can be constructed with side measurements 6 cm, 15 cm, 20 cm?

A.no triangles

B.exactly one triangle

C.more than one triangle

Answer 1

Only one and only one triangle could be constructed with 3 defined sides length. Answer B 

Answer 2

Option: B is the correct answer.

B. Exactly one triangle.

Explanation:

We are given the side lengths of a triangle as:

6 cm, 15 cm and 20 cm.

We know that with the help of all the three side lengths of a given triangle a unique triangle is constructed.

( Whereas with the help of given three angle measures of a triangle infinite number of such triangles could be constructed with different side lengths)

Hence, the answer is:

Option: B