Answer:
 triangle 1 and triangle 3.
Step-by-step explanation:
Given : Four triangle .
To find : Which triangles in the diagram are congruent.
Solution :
By Congruent rule Side angle side : In triangle 1 and triangle 3 are congruent by side angle side .
Therefore, triangle 1 and triangle 3.
 
        
                    
             
        
        
        
Answer:
V ≈ 2011 cm³
Step-by-step explanation:
The volume (V) of a cylinder is calculated as
V = area of base × perpendicular height
V = πr²h ( r is the radius and h the height )
Here r = 8 and h = 10, thus
V = π × 8² × 10
   = π × 64 × 10 = 640π ≈ 2011 cm³ ( to nearest whole number )
 
        
             
        
        
        
Answer:
9 packages of chocolate bars
Step-by-step explanation:
Let he bought c packages of chocolate bars and t packages of toffee bars,
Since, he bought 1 fewer package of chocolate bars than toffee bars.
⇒ c = t - 1  -----(1)
Also, he handed out out  of the chocolate bars and
 of the chocolate bars and  of the toffee bars,
 of the toffee bars,
If he handed out the same number of each kind of candy bar.

 ( By cross multiplication )
     ( By cross multiplication )
 ( Division property of equality )
    ( Division property of equality )
From equation (1),





Hence, he bought 9 packages of chocolate bars.