Question

Pls find WV
a.7
b.23
c.84
d.145

Answer 1

`\mathrm{B}`

Explanation:

`WV=XY`

`12x-61=3x+2`

`12x-3x=2+61`

`9x=63`

`9x/9=63/9`

`x=7`

`12x-61`

`12(7)-61`

`=23`

Answer 2

B. 23

Explanation:

This is a congruent triangle by SAS Postulate

So,

XY = WV

=> 3x+2 = 12x-61

=> 2+61 = 12x-3x

=> 63 = 9x

Dividing both sides by 9

=> x = 7

Now Side WV:

=> 12(7)-61

=> 84-61

=> 23