Question

PLZZ HELP ILL FAN
Which of the following are right triangles? (Choose all that apply.)

Question 10 options:


a)
A triangle with sides of lengths 20 cm, 48 cm, and 50 cm.



b)
A triangle with sides of lengths 15 mm, 20 mm, and 25 mm.



c)
A triangle with sides of lengths 21 mm, 72 mm, and 75 mm.



d)
A triangle with sides of lengths 6 cm, 9 cm, and 12 cm.



e)
A triangle with sides of lengths 16 in, 32 in, and 34 in.



f)
A triangle with sides of lengths 9 in, 40 in, and 41 in.

Answer 1

a) you need to check if 20^2+48^2 = 50^2. if it is, then it's right triangle;
You do the same with all other examples

Answer 2

let's say that "a" is smallest side, "b" medium, and "c" largest, formula is
a^2+b^2=c^2;
if it's true, then it's right triangle, if not, then it isn't

example 1. 3cm, 4cm and 5cm
a=3, b=4, c=5
3^2+4^2=5^2
9+16=25
25=25 so it's right triangle

but 2. 4cm, 5cm, 6cm
4^2+5^2=6^2
16+25=36
41=36 is not true, so, the triangle is not right
hope this helps

Answer 3

its
b, c and f

Answer 4

yes :)