In a box of coins there is currently 31 coins consisting of pennies dimes and quarters. The total number of pennies is equal to the total number of dimes, and the total value is $3.46. How many of each denomination of coin does he have?

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'.

c

step-by-step explanation:

3

step-by-step explanation: