I’m pretty sure the answer is b because the triangles are congruent
Step-by-step explanation:
given pi value= 3
radius=7
we know,
area of a circle(A)= πr²
= 3×7²
=147cm²
Answer: 
Step-by-step explanation:
Given: The diameter of a large lawn ornament in the shape of a sphere = 16 inches.
Then, the radius of ornament =
inches.
We know that the volume of a sphere is given by :-
, where r is the radius of a sphere.
Now, the volume of the ornament is given by :-

Hence, the approximate volume of the ornament 
E/(c^2) = mc^2/(c^2)
m = E/(c^2)