First let's find the area of the original rectangle:
12*5 = 60
Now for the new triangle:
1.25(12) * (1-0.2)(5)
15 * 4 = 60
There is no change in the rectangle.
<u>Given</u>:
The radius of the circle is 4 cm.
The angle of the sector JKL is 135°
We need to determine the area of the sector JKL
<u>Area of the sector:</u>
The area of the sector can be determined using the formula,

Substituting
,
, we get;




Thus, the area of the sector is 18.84 cm²
Answer:
V = 33.5 cm^3
Step-by-step explanation:
The volume of a sphere is given by
V=4/3 pi r^3
The diameter is 4
r= d/2
r =4/2 =2
V = 4/3 pi (2)^3
V = 4/3 pi 8
V = 32/3 pi
Assuming pi is approximated by 3.14
V = 32/3 (3.14)
= 33.493333333 cm^3
To the nearest tenth
V = 33.5 cm^3