"Which of the Following is true based on the diagram?" 1 AB←→ ⊥ CD←→
2 AB←→ // CD←→
3 AB←→ ∦ CD←→
The Image is in the file below

Bro perpendicular is when the lines are connected in the form you know

This line I and j are parallel to each other so the answer Is 2

b. an equilateral triangle inscribed in a circle

step-by-step explanation:

we are given the figure of two circles having a triangle inside.

now, we know that,

"when a figure is lying inside an another figure, then the outside figure is known as circumscribed figure and the figure lying inside is referred to as the inscribed figure".

as we see that, the circles are containing the triangle completely.

thus, the circles are the circumscribed figures and the triangle is the inscribed figure.

hence, we get, 'an equilateral triangle is inscribed in a circle'.