Answer:
Step-by-step explanation:
Answer:
Step-by-step explanation:
That will be a square with a diagonal of 20
side length of 20sin45
and area of (20sin45)² = 200 units²
prove it you say?
Area of a rectangle is base times height
A = bh
With a radius of 10, the diagonals of any rectangle inscribed will be 20 units
20² = b² + h²
h =
A = bh
A = b
Area will be maximized when the derivative is set to zero
dA/db = - b²/
0 = - b²/
b²/ =
b² = 400 - b²
2b² = 400
b² = 200
b =
h =
h =
h =
A = bh
A = •
A = 200 units²
A regular polygon has about 5 lines of symmetry. The number of lines of symmetry is equivalent to the number of sides.
Answer:
v = -1
Step-by-step explanation:
-4 (-3 + 7v) = -7v + 33
12 -28v = -7v + 33
-12 -12
-28v = -7v + 21
-28v + 7v = 21
-21v = 21
-21÷-21 = 21÷-21
v = -1
Answer:
7.62
Step-by-step explanation:
use the Pythagorean theorem
3^2+7^2=58
the square root of 58 is about 7.62