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3 years ago

Find the surface area of the prism 9mm 12mm 8mm

2 answers:

7 0

We are asked in this problem the surface area of the prism given the dimensions: <span>9mm by 12mm by 8mm. Surface area is the sum of the areas of each face of the prism. The formula for surface area is 2*lw+2*lh+ 2*wh. In this case, upon substitution, SA = 2*9*12+2*9*8+2*12*8 equal to a total of 552 mm2. </span>

Deffense [45]3 years ago

6 0

Answer:

Step-by-step explanation:

Length , l = 9 mm

Width , w = 12 mm

height , h = 8 mm

Surface area of a prism is given by

S =2 ( lw + wh + hl )

By plugging all the given values we get

S = 2 (9·12+12·8+8·9)

S= 2 ( 108 + 96 + 72 )

S =2 (276)

S = 552 mm^2

So the surface area of the prism is 552 mm^2

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What is the midpoint of line segment AB?

Elza [17]

Answer

Midpoint = (3, 5.5)

Step by step explanation

Here we have to use the midpoint formula.

Midpoint = ( $\frac{x1 + x2}{2} , \frac{y1 + y2}{2} \\$ )

Here the point A = (-1, 8) and B = (7, 3)

x1 = -1, y1 = 8, x2 = 7 and y2 = 3

Now plug in these values into the formula.

Midpoint = ( $\frac{-1 + 7}{2} , \frac{8 + 3}{2}$

= (6/2, 11/2)

= (3, 5.5)

Therefore, the midpoint the line segment AB is (3, 5.5)

Thank you.

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2 years ago

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3 years ago

-10x = -210 how would i find this answer?

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