Betty is making a quilt made of various patterns . She buys 3 sheets of fabric that each have an area of 30 square feet. She cuts them up into sections that are each 2/5 of a square foot . How many sections will she have total

225 sections

Step-by-step explanation:

Each fabric has an area of 30 sq ft.

All 3 fabrics have a total area of 3 * 30 sq ft = 90 sq ft.

Each sections has an area of 2/5 sq ft.

number of sections = total area of fabric / area of each section

90/(2/5) = 90 * 5/2 = 450/2 = 225

225 sections

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'.