Question

The image below is a triangle drawn inside a circle with center O:

A triangle is shown inscribed inside a circle. The leg of the triangle labeled 8 inches passes through the center of the circle, O. The other two legs are labeled as 4 inches and 5 inches.

Which of the following expressions shows the area, in square inches, of the circle?

(π = 3.14)

3.14 ⋅ 42
3.14 ⋅ 52
3.14 ⋅ 5
3.14 ⋅ 22

Answer 1

@Michele_Laino

Answer 2

is A correct?

Answer 3

I'm thinking...

Answer 4

u think it A?

Answer 5

is your drawing like this?

Answer 6

@nuccioreggie

Answer 7

NO I WILL SHOW U

Answer 8

ok!

Answer 9

THERE

Answer 10

yes! I asked for that drawing, because my drawing it is impossible, since a traingle inscribed like mine has to be a right triangle

Answer 11

triangle*

Answer 12

so A

Answer 13

here we can compute the area of our triangle, using the Eron's formula

Answer 14

is A correct ?

Answer 15

the half-perimeter of our triangle is:
p=(8+4+5)/2=...?

Answer 16

why u neveranswer my question is it A?!

Answer 17

14.5

Answer 18

please wait a moment I check your answer

Answer 19

OK

Answer 20

DID YOU GET IT

Answer 21

sorry, the area of a circle is:
pi*radius^2=3.14*4*4=...?
since the diameter is 8 inches, then radius= 4 inches

Answer 22

3.14 .42

Answer 23

it is:
\[3.14 \cdot {4^2}\]

Answer 24

it is 4^2 not 42

Answer 25

OK

Answer 26

ok!