Question

if the adjacent angles of a rhombus are 4x+5° and 5x-5°.find the value of x:-

give an answer with an explanation..​

Answer 1

Step-by-step explanation:

4x+5+5x-5=180. ( interior angles)

9x=180

x=20

Answer 2

4x+5+5x-5=180  {180 cause we know that an angle of a rhombus is 90}

4x+5x=180

9x= 180

x=$\frac{180}{9}$

x= 20°

Verification:

4*20+5= 85 , 5*20-5 = 95

85+95= 180°

Hence our value is correct.