Ask question

Ask question

All categories

andrew-mc [135]

2 years ago

10

The formula for the circumference of a circle is C = 2r, where r is the radius and C is the circumference. The equation solved f

or r is r = r equals StartFraction C Over 2 pi EndFraction..
Find the radius of a circle that has a circumference of 16.

r = 4
r = 8
r = 12
r = 16

2 answers:

larisa [96]2 years ago

6 0

Answer:

r=8

Step-by-step explanation:

Because 16 divided by 2 is 8

Jobisdone [24]2 years ago

6 0

Answer:

r=8

Step-by-step explanation:

idk i cheat lol

You might be interested in

Please answer quickly:

julia-pushkina [17]

You need to have variables one one side and constants on the other. ax - ax + by = c - ax by = c - ax by/b = (c - ax)/b y = (c - ax)/b

8 0

2 years ago

Read 2 more answers

What is the value of the expression (−2 4/5)÷(−1.4)

AysviL [449]

Answer:

2

Step-by-step explanation:

3 0

3 years ago

PLEASE ANSWER QUICKLY

jenyasd209 [6]

Answer:

It should be D because I have done that a couple days ago

6 0

2 years ago

Select each correct answer.<br> 420 +22)<br> o 4 (4+2)<br> o 4 (40+2)<br> 4(4+20)

Vikki [24]

Answer:

sorry i don't know that

Step-by-step explanation:

8 0

2 years ago

Find the surface area of the right prism. Round to the nearest whole number.

andriy [413]

Answer:

$\large\boxed{S.A.=96\ cm^2}$

Step-by-step explanation:

We have:

(1) two trapezoids with bases b₁ = 7cm and b₂ = 5cm and the height h = 4cm

(2) three rectangles 3 cm × 7 cm, 3 cm × 4 cm and 3 cm × 5 cm.

The formula of an area of a trapezoid:

$A=\dfrac{b_1+b_2}{2}\cdot h$

Substitute:

$A=\dfrac{7+5}{2}\cdot4=24\ cm^2$

Calculate the areas of the rectangles:

$A_1=(3)(7)=21\ cm^2\\\\A_2=(3)(4)=12\ cm^2\\\\A_3=(3)(5)=15\ cm^2$

The Surface Area:

$S.A.=(2)(24)+21+12+15=96\ cm^2$

5 0

2 years ago