Question

Need help in maths pleas which i mark imp that i need.....;(​

Answer 1

X2 = 12^2 + 5^2

X2 = 144 + 25

√X^2= √164

X = 12

Answer 2

Hello Fatima!

The value of x in the first triangle would be

$x = \sqrt{ {12}^{2} + {5}^{2} } \\ x = \sqrt{144 + 25} \\x = \sqrt{169} \\ x = 13$

The value of x in the second triangle would be

$x = \sqrt{ {8}^{2} - {6}^{2} } \\ x = \sqrt{64- 36} \\x = \sqrt{28} \\ x = 5.29$

The value of x in the third triangle would be

$x = \sqrt{ {13}^{2} -{5}^{2} } \\ x = \sqrt{169- 25} \\x = \sqrt{144} \\ x = 12$