If the drawing of your octagon (or whatever) has been separated into triangles, and one triangle's area<span> is labeled, then you do not need to know the apothem. Just take the </span>area<span> of that one triangle, and multiply by the number of sides in the original </span>polygon<span>.</span>
X=7.1cm
The solution is in the attached file
Answer:
B. The radius
Step-by-step explanation:
The area of a sector of a circle is ½ r² ∅, where r is the radius and ∅ the angle in radians subtended by the arc at the centre of the circle so we need to know the radius for it
Answer:
The sum of the exterior angles of hexagon is 360° .
Step-by-step explanation:
Given as :
For a hexagon , let the sum of exterior angles = x
Now, for any polygon The sum of each exterior angle =
Where n is the number of sides of any polygon
If polygon is a hexagon ,
Then , for hexagon the number of sides = 6
∵ The measure of each exterior angle =
So, For hexagon , n = 6
The measure of each exterior angle =
I. e The measure of each exterior angle = 60°
So, The sum of the exterior angles of hexagon is 60° × 6 = 360°
Hence The sum of the exterior angles of hexagon is 360° . Answer
Answer:
2.40 × 10²
Step-by-step explanation:
Data provided in the question:
we have to convert 820,000 Btu/h to kW
Now,
1 kW = 3412.142 Btu/h
or we can say
1 Btu/h = 0.00029307107 kW
Therefore,
820,000 Btu/hr in kW will be
= 820,000 × 0.00029307107 =
or
= 240.3182774
or
= 2.40 × 10²
Hence,
according to the question, X will be 2.4 and the term in the power of 10 is 2