Question

if each angle of a quadrilateral is equal to x degree , the x ___​

Answer 1

Answer:

x=90⁰ angle.

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Answer 2

Answer:

The measures of the angles are 38  0  ,74  0  ,76  0   and 172  0

Step-by-step explanation:

Since the sum of the angles of  a quadrilateral is 360  

0

 

Therefore, x+(3x−40)+2x+(4x+20)=360  

0

 

⇒10x−20=360  

0

 

⇒10x=360+20=380

⇒x=  

10

380

​  

=38

Now, x=38⇒2x=2×38=76

3x−40=3×38−40=74

and 4x+20=4×38+20=172

Thus, the measures of the angles are 380 ,74  0 ,76  0 and 172 0