Question

What is the length of the red vertical angle?

Answer 1

I chose 6 as my answer. Please explain why I may or may not be wrong :)

Answer 2

we have a right angled triangle as below. Use the pythagoras theorem
5^2 = 4^2 + x^2 - find x

Answer 3

x is not = 6

subtracting 6^2 from bth sides of the equation:-

x^2 = 5^2 - 4^2
x^2 = 25 - 16

find x

Answer 4

* that is 4^2 not 6^2 (in the second line)

Answer 5

25-16 = 9, so would x be 3^2?

Answer 6

NO x^2 = 9 not x

Answer 7

(3^2 = 9 , of course)

Answer 8

so if x^2 = 9 , x = ?

Answer 9

Lol........3?

Answer 10

yes!

Answer 11

3 * 3 = 9
the square root of 9 is 3

Answer 12

the square root of 3^2 is 3!!

Answer 13

OK? Any questions?

Answer 14

Thank you.

Answer 15

The longest side in a right angled triangle is the hypotenuse (sloping side) so that length of x can't be 6.

Answer 16

yw