Question

Please help find the answer ​

Answer 1

`AC = \bf 4.13 \space\ cm`

Explanation:

Using Pythagoras's theorem:

`\boxed {a^2 = b^2 + c^2}`,

where:

a ⇒ hypotenuse (AC, ? cm)

b, c ⇒ the two other sides of the triangle (AB = 2.2 cm, BC = 3.5 cm),

we can find the length of AC.

`AC^2 = AB^2 + BC^2`

⇒
`AC^2 = (2.2)^2 + (3.5)^2`

⇒
`AC = √((2.2)^2 + ((3.5)^2)`

⇒
`AC = √(17.9)`

⇒
`AC = \bf 4.13 \space\ cm`