A sphere has a radius of 3.5 inches.

What is the volume of the sphere rounded to the nearest tenth?

Use 3.14 for pi.

28.3 in³
88.7 in³
179.5 in³

211.3 in³

9514 1404 393

  179.5 in³

Step-by-step explanation:

The volume of a sphere of radius r is given by the formula ...

  V = (4/3)πr³

For a radius of 3.5 in, the volume is approximately ...

  V = (4/3)(3.14)(3.5 in)³ ≈ 179.5 in³

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'.