Line segment AB is perpendicular to line segment CB. Ray BD bisects angle ABC. What is the measure of angle DBC? 22.5 degrees 45 degrees 67.5 degrees 90 degrees

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'.

is there supposed to be a picture here?