Answer:
40 unit squared
Step-by-step explanation:
10*8=80
80/2=40
Answer – TrueA design is said to have Rotational symmetry if all its characteristics remain the same after it has been rotated about an axis lying in its plane. In other words, rotational symmetry is the quality possessed by a shape has when it looks the same after it has undergone some rotation by a partial turn about an axis lying in its plane. Rotational symmetry is also referred to as radial symmetry.
Answer:
The radius of the aquarium tank is 
Step-by-step explanation:
we know that
Applying the Tangent Secant Theorem

we have that


substitute


Solve for D



Find the radius
The radius is half the diameter

Answer:
7
Step-by-step explanation:
means x*x = 49
x * x = 49
x= 7

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