Answer:
The answer to your question is letter D
Step-by-step explanation:
We know that the sum of the internal angles in a triangle equals 180°.
So, B = 30°, C = 90° and A = ?
A + B + C = 180°
Substitution
A + 30 + 90 = 180
Solve for A
A = 180 - 30 - 90
A = 180 - 120
A = 60°
To find "b". use the trigonometric function sine
sin B = 
sin B x hypotenuse = Opposite side
Opposite side = sin 30 x 10
Opposite side = 0.5 x 10
Opposite side = b = 5.0
To find "a" use the trigonometric function cosine
Cos A = adjacent side / hypotenuse
Adjacent side = a = cos A x hypotenuse
Adjacent side = a = cos 60 x 10
a = 0.866 x 10
a = 8.66
Given: A cylinder with radius = 10 inches and height = 6 inches.
We have to determine the volume of the cylinder.
Volume of a cylinder with radius 'r' and height 'h' is given by the formula 
Substituting the value of 'r' and 'h', we get
Volume = 
Volume = 
Volume = 1884 cubic inches.
Therefore, the volume of the cylinder is 1884 cubic inches.
Graphing two equations that produces the same line is called Infinite Solutions.
2m 10cm = 210cm
Perimeter = 2(length+width)
P = 2(210+45)
P = 2(255) cm
P=450 cm
Therefore, the rectangle's perimeter is 450 cm.