Answer:
The area of triangle is 
Step-by-step explanation:
Let
B -----> the measure of the vertex angle of the isosceles triangle ABC
a and c -----> the two congruent sides of the isosceles triangle ABC
we know that
The area of a triangle applying the law of sines is equal to

we have


substitute in the formula


 
        
             
        
        
        
The volume is 4.19ft³ Hope it helps <3
        
                    
             
        
        
        
Answer:
Area of ellipse is ≈ 77.78 
Step-by-step explanation:
Given the dimension of ellipse
   a = 4.5 m
   b = 5.5 m 
Now, Area of ellipse = 
                                   = 
                                   = 
                                   = 77.78 
Hence Area of ellipse will be 77.78 