Answer:
A
Step-by-step explanation:
This is a sector of a circle measuring 140° and the circle has radius 9 inches.
We can use the formula for the area sector of a circle to figure this out.
Area of a Sector of a Circle = 
Where
is the intercepted angle (here it is 140), and
r is the radius (here it is 9)
<em>plugging into the formula, we get:</em>
<em>
</em>
rounding to nearest tenth, it is 99.0 inches squared.
Option A is right.
<span>D.=12</span><span>, </span><span>C.≈38</span><span> and </span><span>A.≈113
Hope this helps!</span>
Step-by-step explanation:
area of the rectangle : L×B = 2.1×1.2 = 2.52m².
diameter = 1.2 m, radius = 1.2/2 =0.6m
area of the semi-circle : πr²/2 = 22/7×0.6×0.6/2 = (22×0.6×0.6)/(7×2) = 7.92/14 = 0.565m².
Therefore, total area of the door : (0.565+2.52)m² = 3.085m².
hope this helps you .
The factors of a number are all of the numbers that a certain number is divisible by. In this case, we're looking for all the numbers that 
is divisible by.
To do this, I'll use factor pairs. This means I will find the pairs of numbers that can be multiplied together to get 42.
So, all of the factors of 42 are 
.
