Question

please solve this


urgent
​

Answer 1

Answer:

x=6

Step-by-step explanation:

AB=3x

BC=4x

AC=30

(i)

by Pythagoras theorem

$AC^{2}$=$BC^{2}$+$AB^{2}$

$30^{2} =3x^{2}+ 4x^{2}$

900=$9x^{2}+ 16x^{2}$

900=$25x^{2}$

900/25=$x^{2}$

36=$x^{2}$

$\sqrt{36}$=x

6=x

or

x=6

(ii)

AB=3x

3*6

18

BC=4x

4*6

24

AB=18

BC=24