3. in the diagram below, what is the relationship between from the number of rectangles and the perimeter of the figure they form?

The 4th table: (rectangles, perimeter) = (1, 16), (2, 20), (3, 24)

The sums of the numbers shown in each figure are 8, 10, 12. In each case, this sum is half the perimeter of the figure, so the perimeter values are 16, 20, 24.

Only the 4th table shows these values for perimeter.

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'.

5 pm

step-by-step explanation: