Answer:
X = [-5 -1 2 1] - [-1 -2 4 8] = [-4 1 -2 -7]
 
        
             
        
        
        
The answer is the triangles  could have the same shape( that is all the angles are equal) but the sides  may not be the same length . Thay are similar but not necessarily congruent.
C is the correct choice.
        
                    
             
        
        
        
Step-by-step explanation:
> find the angle of center circle:
 cos~¹ 5/(5+12) = cos~¹ 5/17 = 72°
 so the sector area of the shaded
 region =
 (360-72)/360 × 3.14 × 5² 
 = 288/360 × 78.5
 = 62.8
> the height of triangle (red Line) =
 4×tan 72° = 4× 3.078 = 12.31
 the height of pyramid (green
 Line) = √12.31²-8.5² =√74.16
 = 8.61
 so the volume of pyramid =
 ⅓×(17×8)×8.61 = 390.32
 
        
             
        
        
        
The cash payment for the article is RS. 2,260. 
A discount reduces the price of an item. The article becomes cheaper after the discount. 
Cost of the article after the RS. 20 discount = RS. 2020 - 20 = RS 2000
VAT means value added tax. VAT increases the price of an item. The cost of the article increases by 13% after the  VAT is levied, 
Cost of the article = (100 + 13%) x 2000 
1.13 x 2000 = RS 2,260.
To learn more about taxes, please check: brainly.com/question/25311567