2 years ago

What is the area of a circle with a radius of 9 cm? (Express your answer using π.)

Mathematics

2 answers:

Dafna1 [17]2 years ago

7 0

It is A because the area of a circle id πr^2 an 9*9=81 81

jekas [21]2 years ago

4 0

Area of a circle= π * r^2
π*9^2
π*81= 81π
Your answer is A.

You might be interested in

Which expression has a value of 7/12 ? 7/8 + 4 , 1/3 + 1/4 , 6/8 + 1/4 , 2 1/12 + 5 1/12

vazorg [7]

Answer:

$\frac{1}{3} + \frac{1}{4}$

Step-by-step explanation:

We want to find an expression that has a value of

$\frac{7}{12}$

First option:

$\frac{7}{8} + 4 = \frac{7}{8} + \frac{32}{8} = \frac{39}{8} \ne \frac{7}{12}$

Second option:

$\frac{1}{3} + \frac{1}{4} = \frac{4}{12} + \frac{3}{12} = \frac{7}{12}$

Correct option

Third option

$\frac{6}{8} + \frac{1}{4} = \frac{3}{4} + \frac{1}{4} = 1$

Fourth option:

$2 \frac{1}{12} + 5 \frac{1}{12} = \frac{43}{6}$

5 0

2 years ago

3/4 + 3/4 = 3/11 + 6/11= 3/10 +

valentina_108 [34]

+ what??????????????

3 0

3 years ago

SOMEONEEEEEEEEEEEEEE PLSSSSSSSSSSSSSSSSSSSSSSSSSSSSS look at the photo and help me

Brrunno [24]

Step-by-step explanation:

The answer is one hope this helps

5 0

2 years ago

Read 2 more answers

What is the C in C + 11 = 44?

vodka [1.7K]

44-11=33
33+11=44
The answer is 33

5 0

3 years ago

Index notation -

Jlenok [28]

A) 4*3 x 5*2
b) 9*4 x 7*2
c) 3 x 7*4
d) 2*2 x 9*4
8*5

6 0

3 years ago