The greek alphabet contains 24 letters. how many fraternity names with greek letters can be formed if each fraternity name contains 2 letters and repetition of letters is permitted?
48
552
576

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'.

there is no question content here, but you for the free points! : d