3 < x < 13
This is because the sum of two sides must be greater than the length of the third side.
Area of circle = Pi x r*2
If diameter is 18, radius is 9.
Area = pi (3.14) x r*2 (9*2 = 81) .. 3.14 x 81 = 254.34 sq cen = total area of circle.
A circle is 360 degrees, the shaded area is 270 degrees. the shaded area is 3/4 (270/360) of the area of the circle.
254.34 x 3/4 = 190.755 sq cen
Hope this helps
(A ∩ B) means "A intersection B". Your problem statement tells you the intersection contains
{3, 4}
For trapezoid, the area = (upper base + lower base) * height / 2
So area = (12 + (2*2 + 12) ) *13 / 2 = 182
A2 + b2 = c2
7^2 + 5^2 = c2
49 + 25 = c2
74 = c2
square root of 74 = c2
8.602325267 = c
The length of the hypotenuse is around 8.6 cm.
