9514 1404 393
Answer:
cone: 138.16 in²
pyramid: 352 m²
Step-by-step explanation:
Use the appropriate formula from your list of area and volume formulas.
<u>Area of a Cone</u>
A = πr(r +h) . . . . . where r is the radius and h is the slant height
The radius is half the diameter, so is 4 inches.
A = π(4 in)(4 in + 7 in) = 44π in² ≈ 138.16 in²
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<u>Lateral Area of a Square Pyramid</u>
A = 2sh . . . . . where s is the side length of the base and h is the slant height
A = 2(8 m)(22 m) = 352 m²
Answer:
Angle 1 is 70 degrees
Angle 3 is 70 degrees
Angle 4 is 110 degrees
Step-by-step explanation: This is right bro. 100%
All these angles r on a flat plane which has a degree of 180
Angle 2 is 110, so u know the other half is 70 degrees.
You can see that the other angle next to angle to is equal to angle 1, so u know Angle 1 equals 70 degrees.
If u flip angle 1 vertically, u can see that it's equal to angle 3, so angle 3 is 70 degrees.
Since angle 3 is 70 degrees, u know that angle 4 has to be 110 degrees.
This is right because if u add angle 3 and 4, u get 180 degrees.
Answer: 96 m²
Step-by-step explanation: Surface area is the sum of the areas of all of the faces of a 3-dimensional figure.
So to find the surface area of a cube, it's important to understand that each face of a cube has the same area so we can simply find the area of one face of a cube and multiply by the number of faces which is 6.
To find the area of one face of a cube, we can use the formula for the area of a square which is S².
Since the length of a side is 4 meters, we have (4 m)² or 4 meters x 4 meters which is 16 m².
Now, since there are six sides to a cube, we have 6 (16 m)² which is equal to 96 m². So the surface area of the cube is 96 m².
<em>This is what the opposite of 7 is or the opposite of </em><em>-7.</em>
No it is not a prime number