Which of the following are valid names for the given triangle? check all that apply

B) XMA; C) MAX; and D) AXM

Step-by-step explanation:

A triangle is named based on its vertices.  The vertices of this angle are A, M and X; this means any combination of these three letters can be used to name the triangle.

56.6

step-by-step explanation:

the ratio of the perimeters is equal to the scale.

the ratio of the areas is equal to the square of the scale.

34 / 20 = k

a / 19.6 = k²

substituting:

a / 19.6 = (34 / 20)²

a = 19.6 (34 / 20)²

a ≈ 56.6