Emma is making a scale drawing of her farm using the scale 1 cm = 2.5 ft. in the drawing, she drew a well with a diameter of 0.5 centimeter. which is the closest to the actual circumference of the well?

Circumference of the well = 3.93 ft

Step-by-step explanation:

Emma is making a scale drawing of her farm using the scale 1 cm = 2.5 ft

She drew a well with a diameter of 0.5 cm.

We have to calculate the actual circumference of the well.

Since the scale factor used by Emma was 1 cm = 2.5 ft

So by this scale actual diameter of well will be

0.5 cm =  

Now radius of the well will be

Since circumference of a circle P = 2πr

Therefore P = 2×(3.14)×(0.625) = 3.93 ft

Answer is " circumference of the well is 3.93 ft "

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'.

i got 142 as my answer

step-by-step explanation: