Question

Find the peremiter of triangle ABC

Answer 1

Step-by-step explanation:

12

units.

Step-by-step explanation:

Using the Distance Formula,

A

B

2

=

{

(

−

5

)

−

(

−

2

)

}

2

+

{

(

−

2

)

−

(

−

2

)

}

2

=

9

∴

A

B

=

3

Similarly,

B

C

=

5

,

and

,

A

C

=

4

Hence,

the Perimeter=

A

B

+

B

C

+

A

C

=

12

units.

Answer link

Answer 2

18

Step-by-step explanation:

if AB : BC : AC is 3 : 4 : 2 and BC = 8 then AB = 6 and AC = 4

To calculate the perimeter of the triangle we add all side lengths up

4 + 6 + 8 = 18