Since the polyhedron is about 78.5 m², the radius of the sphere is 2.5 m
Since the sum of the faces of the polyhefron equals the surface area of the sphere, we find its surface area.
<h3>What is the surface area of sphere?</h3>
The surface area of sphere is given by A = 4πr² where r = radius of sphere
<h3>Radius of the sphere</h3>
Making r subject of the formula, we have
r = √(A/4π)
Given that he sum of all the faces of the polyhedron is about 78.5 square meters, this is equal to the surface area of the sphere.
So, A = 78.5 m²
Substituting this into the equation for r, we have
r = √(A/4π)
r = √(78.5 m²/4π)
r = √(19.625 m²/π)
= √(6.246 m²)
= 2.499 m
≅ 2.5 m
So, the radius of the sphere is 2.5 m
Learn more about radius of sphere here:
brainly.com/question/13458041
#SPJ1
Step-by-step explanation:
bodmas
7-4/4+12-10
7-4/16-10
3/4
0.75
Answer:
$325
Step-by-step explanation:
You subtract 92 dollars from 558, 466, divide by 2, 233, then add 92 dollars which brings your total to $325 ( please friend me I'm new my name is crystal but my mom made this account so it looks like I'm 44 :/
Question: One number is one less than a second number. Twice the first is 4 more than 5 times the second. Find the numbers.
Answer:
The numbers are -3 and -2
Step-by-step explanation:
Given
Let the numbers be a and b
From the first statement:
From the second:
Required
Find a and b
Substitute b - 1 for a in the second equation
Collect like terms
Recall that:
Answer:
See below
Step-by-step explanation:
Julie wants to cut her hair 9 inches off from 16 inches
<h3>Part A </h3>
Expression
<h3>Part B</h3>
Calculation
<h3>Part C</h3>
Explanation of steps
- 1 - note the point 16 on the number line
- 2 - move left by 9 points on the number line
- 3 - note point 7 as answer