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Paladinen [302]
3 years ago
11

Find the surface area of the rectangular prism.

Mathematics
1 answer:
alexdok [17]3 years ago
8 0

Step-by-step explanation:

curved surface area =

perimeter of triangular base × length

= 3×8 + 12

= 24 + 12

= 36mm^2

total surface area

= curved surface area + 2× area of triangular base

= 36 + 2 × root3 ×8^2 ÷ 4

= 36 + 2 × root3 × 16

= 36 + 2× 27.71

= 36 + 55. 425

= 91.425 mm^2

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Which geometric object is defined as the set of all points in a plane at a given distance from a given point
hodyreva [135]

Answer:

Circle

Step-by-step explanation:

This object is what we call "circle". All the points in the circle are at the same distance from a given point which is the center of the circle. Moreover, the distance between the center and every point on the circle is called "radius". Higher values for the radius imply points at a higher distance from the center.

Additionally, we can calculate the perimeter of the circle, or the circumference, with the following formula:

circumference = 2*(radius) pi

Where pi is an irrational number usually used as 3.14.

If you have doubts, try to draw a circle and measure the distance between the center and any point on the circle.

8 0
4 years ago
Evaluate 6(5-(6-5)-3​
IrinaK [193]

Answer:

Step-by-step explanation:

Evaluate 6(5-(6-5)-3​) =  6(5-1-3​)   {first solve innermost bracket}

                               = 6* (5-4) = 6*1 =6

4 0
3 years ago
Read 2 more answers
What is f(2) = 2x -6
Dennis_Churaev [7]

Answer:

f(2) = -2

Step-by-step explanation:

f(2) = 2x - 6

f(2) = 2(2) - 6

f(2) = 4 - 6

f(2) = -2

4 0
3 years ago
One vertex of a polygon is located at (3, –2). After a rotation, the vertex is located at (2, 3).
motikmotik

yes it is right when the vertex of the first polygon is located on 3 - 2 after rotation the work vertex will be there on (2 , 3) it is right

4 0
3 years ago
Read 2 more answers
Karen planted a flower that was 14 inches tall. It grew 2 1/4 inches each week. If it is now 23 inches tall, how
NARA [144]

Answer:

4 weeks

Step-by-step explanation:

2 1/4 = 9/4 = 2.25

if it grows 2.25 inches in one week then in two weeks it would have grown 4.5 inches

keep adding the 2.25 inches to 14 until u get 23

:) hope this was heplful

8 0
3 years ago
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