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

Option: B is the correct answer.

         B.   Exactly one triangle.

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

pentagon

step-by-step explanation:

the coordinates   a(5, -2), b(3,-1),c(-4,-4) d(-3,8) and e(-1,4) forms the vertices of the polygon when they are connected in order.

in order to classify that which polygon is it with the given coordinates, first count the number of vertices and then count the number of sides it can make with these vertices.

since, the given coordinates have five vertices, therefore, it will make five sides. moreover, pentagon is regular in nature therefore it will be convex.

now, a polygon with five sides is known as pentagon, therefore, the given polygon is the pentagon.

answer

step-by-step explanation: