Determine whether the given lengths can be sides of a right triangle. which of the following are true statements. a. the lengths 7, 40 and 41 can not be sides of a right triangle. b. the lengths 12, 16, and 20 can not be sides of a right triangle. c. the lengths 7, 40 and 41 can not be sides of a right triangle. d.the lengths 12, 16, and 20 can be sides of a right triangle. the lengths 7, 40 and 41 can be sides of a right triangle.

Given sides 12, 16 and 20 can be the sides of right triangle.

Step-by-step explanation:

Sides of right triangle always follow the Pythagoras theorem.

i.e

For the given Lengths 7, 40 and 41

We need to check if

That means,

hence 7,40 and 41 can not be the sides of right triangle.

Next,

Given sides 12,16 and 20.

Again follow the similar process used in the above problem.

Therefore given sides 12,16 and 20 can be the sides of right triangle.

it is a. 4.2 because 7.6-3.4 gets the remaining length of 4.2. i might be wrong but i am pretty sure this is the answer.