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Pls help me with this ..​

Pls help me with this ..​-example-1
User BenNov
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1 Answer

9 votes

Answer:

1. Volume = 1,323

2. Area = 866.64

Explanation:

Volume of Prism = Area of base×height

First find the volume of the rectangular prism:

Volume of Rectangular Prism= w*h*l = (9)(14)(8) = 1,008

w = width = 14

h = height = 8

l = length = 9

Second find the volume of the triangular prism:

Volume of Triangular Prism= 1/2(b*h*l) = 1/2(5*14*9) = 1/2(630) = 315

b = base = 14

h = height = 5

l = length = 9

Now we just add the two volumes together

1,008 + 315 = 1323

Volume = 1,323

Now for the second figure, it is a capsule, to find the total surface area, we use the formula: A = 4πr² + 2πrh

a = 4 × 3.14 × 6² + 2 × 3.14 × 6 × 11

Multiply 4 and 3.14 to get 12.56

a = 12.56 × 6² + 2 × 3.14 × 6 × 11

Calculate 6 to the power of 2 and get 36

a = 12.56 × 36 + 2 × 3.14 × 6 × 11

Multiply 12.56 and 36 to get 452.16

a = 452.16 + 2 × 3.14 × 6 × 11

Multiply 2 and 3.14 to get 6.28

a = 452.16 + 6.28 × 6 × 11

Multiply 6.28 and 6 to get 37.68

a = 452.16 + 37.68 × 11

Multiply 37.68 and 11 to get 414.48

a = 452.16 + 414.48

Add 452.16 and 414.48 to get 866.64

Area = 866.64

User Mingchaoyan
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