Question

Find the length of the missing side

Answer 1

Answer:

25 in and 9 cm

Step-by-step explanation:

Using Pythagoras' identity

The square on the hypotenuse is equal to the sum of the squares on the other 2 sides.

let x be the missing side

A

x² = 7² + 24² = 49 + 576 = 625 ( take square root of both sides )

x = $\sqrt{625}$ = 25

B

x² + 12² = 15²

x² + 144 = 225 ( subtract 144 from both sides )

x² = 81 ( take square root of both sides )

x = $\sqrt{81}$ = 9

Answer 2

Answer:

A) $\sqrt{7^{2} +24^{2} }$ = 25

B) $15^{2} -12^{2} = B^{2}$

   $B^{2} =81$

B = 9

Step-by-step explanation: