Question

Which of the following possibilities will form a triangle?

Side = 15 cm, side = 6 cm, side = 8 cm
Side = 15 cm, side = 6 cm, side = 9 cm
Side = 16 cm, side = 9 cm, side = 6 cm
Side = 16 cm, side = 9 cm, side = 8 cm

Answer 1

@ChillOut @campbell_st

Answer 2

@triciaal

Answer 3

The two smaller sides need to make up the larger side when squared. The formula x^2 + b^2 = c^2 shows this. Plug in your known values and see if its true. If a and b = c, then yes, it forms a triangle.

Answer 4

For triangles, the shortest 2 sides must add up and be longer than the 3rd side.

For each option add the shortest two sides and compare it to the longest side.

Answer 5

ok then hold on ..

Answer 6

would it be D.?

Answer 7

@Compassionate

Answer 8

9^2 + 8^2 = 16^2

145 = 256

No. That's not it.

Answer 9

what is ^ lol

Answer 10

@Compassionate

Answer 11

its A right? @Compassionate

Answer 12

nvm i mean B not A

Answer 13

a + b > c

So your two sides, added together, must be greater than c.

Answer 14

Side = 16 cm, side = 9 cm, side = 8 cm

16 + 9 > 8
9 + 8 > 16
8 + 16 > 9

Therefore, your answer comes out to D. Understand?

Answer 15

I was trying to poke around and see if you'd understand. Basically, if all points given are greater than c, then it can form a triangle.

Answer 16

I wanted to see if you were paying attention or just going along with what I was saying

Answer 17

oh ok

Answer 18

add all three niumbers and see if any adds up to 180 then that woud be your answer

Answer 19

well then thank you!!!

Answer 20

@xcharlizea , that's wrong.

The formula is, you take the three points, and if a + b > c, then it forms a triangle, but you have to do this for every possible arrangement.

So, if you had the points, 1cm, 2cm, 3cm
1cm + 2cm > 3cm (true)
2cm + 3cm > 1cm (true)
3cm + 1cm > 2cm (true)

So the points 1cm, 2cm, 3cm will form a triangle.

Answer 21

@Compassionate oo right thats what i meant lol