Find the length of AB

​

69

Step-by-step explanation:

Step-by-step explanation:

B

=

√

68

≈

8.25

to 2 dec. places

Explanation:

calculate the length using the  

distance formula

¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯

∣

∣

∣

2

2

d

=

√

(

x

2

−

x

1

)

2

+

(

y

2

−

y

1

)

2

2

2

∣

∣

∣

−−−−−−−−−−−−−−−−−−−−−−−−−−−−−−  

let  

(

x

1

,

y

1

)

=

(

5

,

−

2

)

and  

(

x

2

,

y

2

)

=

(

−

3

,

−

4

)

A

B

=

√

(

−

3

−

5

)

2

+

(

−

4

−

(

−

2

)

)

2

A

B

=

√

64

+

4

=

√

68

≈

8.25

(

2 dec. places

)

go on the tube you might find some information there