Which triangle has an irrational number as one of its side lengths?

Option 4

Step-by-step explanation:

The square root of 25 is 5 so it is not number 1

The root of 400 is 20 so it is not number 2

the square root of 676 is 26 so it not that.

That leaves option four which is irrational

answer

a,b, and d

explanation

a reflection angle is more than

but less than;

an angle that measures

is a reflex angle.(true)

an angle that measures less than

is acute.(true)

provided we are considering angles greater or equal to zero.

an acute angle lies in the range.

an obtuse angle is less than 180° but more than 90°

an angle that measures 300° is obtuse (false)

an angle that measures 65° is an acute angle.(true)

answer: 0.26

i used the calculator on google