Question

Hii help me pls pls pls pls :( pls

Answer 1

B) 5mm, 3mm, 7mm

Explanation:

Triangles can only be formed when the sum of each two sides of the triangle is greater than the other side.

A.

`6cm+9cm>2cm`

`9cm+2cm > 6cm`

`6cm+2cm < 9cm` <-

Because
`6cm+2cm < 9cm`, ∴ Option A cannot form a triangle.

B.

`5mm+3mm > 7mm`

`5mm + 7mm > 3mm`

`3mm+7mm > 5mm`

Because all combinations satisfy, ∴ Option B can form a triangle.

C.

`4cm+8cm > 3cm`

`8cm+3cm > 4cm`

`4cm+3cm < 8cm` <-

Because
`4cm+3cm < 8cm`, ∴ Option C cannot form a triangle.

D.

`5mm + 2mm > 1mm`

`5mm+1mm>2mm`

`1mm+2mm<5mm` <-

Because
`1mm+2mm<5mm`, ∴ Option D cannot form a triangle.

Hope this helps :)