Answer: 44%
Step-by-step explanation:
For a circle of radius R, the area is written as:
A = pi*R^2
Where pi = 3.14
If we increase the radius by 20%, the new radius will be:
R´ = R + 0.20*R = 1.20*R
The new area will be:
A´ = pi*(1.20*R)^2 = (1.20)^2*pi*R^2
= 1.44*pi*R^2
And pi*R^2 = A, the original area, then_
A´ = 1.44*A = A + 0.44*A
This means that the percentage in which the area increased is:
0.44*100% = 44%
80 because the both lines intersect at this point.
An isosceles trapezoid is a quadrilateral having the following properties: The median of an isosceles trapezoid is the line segment formed when we join the midpoint of one leg to the midpoint of the other leg of an isosceles trapezoid. The median forms a special theorem just for isosceles trapezoids.
