Question

Only part B and C . please help.​

Answer 1

Answer:

Step-by-step explanation:

To determine if the given values are part of a right-angled triangle, we need to use the Pythagorean theorem, removing one of the variables, and if it results in the neglected value, it is a right-angled triangle.

$a^2+b^2=c^2$

b.

$21^2+24^2=c^2\\c=31.9$

DEF is not a right triangle.

c.

$7.1^2+2.4^2=c^2\\c=7.5$

GHI is a right triangle.

Hope this helped! If you need more help with the practice, please comment below. Have a good day!