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kompoz [17]
4 years ago
7

Find the surface area of each geometric solid

Mathematics
1 answer:
Maru [420]4 years ago
6 0

Answer:

500 sq in. & 9478.85 sq. cm

Step-by-step explanation:

Given:

Cuboid,

l = 15 in.

b = 10 in.

h = 4 in.

Cylinder,

r = 26 cm

h = 32 cm

To Find:

Surface Area = ?

Solution:

Surface area of cuboid = 2(lb + bh + lh)

Surface area of cuboid = 2{15(10) + 10(4) + 15(4)}

Surface area of cuboid = 2(150 + 40 + 60)

Surface area of cuboid = 2(250)

Surface area of cuboid = 500 sq in.

Surface area of cylinder = 2x pi x r( r + h)

Surface area of cylinder = 2 x 22 x 26(26 + 32) / 7

Surface area of cylinder = 2 x 22 x 26 x 58 / 7

Surface area of cylinder = 9478.85 sq. cm

PLZ MARK ME AS BRAINLIEST!!!

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Leokris [45]
Are there answer choices ?
6 0
3 years ago
I need help with this questions, please help ill mark brainliest..
Natasha_Volkova [10]

Answer:

Options (1), (3) and (5)

Step-by-step explanation:

Equation that represents the relationship between the three sides of a triangle is,

a² + b² = c²

Where c = longest side of the triangle

If the length of the given sides satisfy the equation, triangle formed by the sides will be a right triangle.

Option A.

27 in, 36 in, 45 in

(45)² = (27)² + (36)²

2025 = 729 + 1296

2025 = 2025

True.

Option 2.

18 in, 22 in, 28 in

(28)² = (18)² + (22)²

784 = 324 + 484

784 = 808

False.

Option 3

10 in, 24 in, 26 in

(26)² = (10)² + (24)²

676 = 100 + 576

676 = 676

True.

Option 4

20 in, 21 in, 31 in

(31)² = (20)² + (21)²

961 = 400 + 441

961 = 841

False.

Option 5

28 in, 45 in, 53 in

(53)² = (28)² + (45)²

2809 = 784 + 2025

2809 = 2809

True.

Therefore, Options (1), (3) and (5) will be the correct options.

6 0
3 years ago
You take a 200 milligram dosage of aspirin. During each subsequent hour, the amount of medication in your bloodstream decreases
shepuryov [24]

Answer: The level of aspirin (mg) will be in your bloodstream in 4 hours = 35.70 mg.

Step-by-step explanation:

If the amount is decreasing by r%, then the final amount is given by :-

A=P(1-r)^t

, where P = initial value , t= time

Given: P= 200 milligram, r= 35% = 0.35, t= 4 hours

The level of aspirin (mg) will be in your bloodstream in 4 hours = 200(1-0.35)^4

=200(0.65)^4\\\\=200\times 0.17850625\\\\=35.70125\approx35.70 \ mg

Hence, the level of aspirin (mg) will be in your bloodstream in 4 hours = 35.70 mg.

5 0
3 years ago
Find the hypotenuse of each isosceles right triangle when the legs are of the given measure. Given = 6"
Svetllana [295]
From this detail that is a right isosceles triangle result that the angles from the base has measure of 45 degrees 
- there is given again that the length of legs is 6"
- than we drawn the height from the right angle on hypotenuse and use sin45 we get 
but we need to know that 6" = 6*2,6 = 15,6 cm = 0,156 m
cos 45° = (half of hypotenuse)/6"

sqrt2 /2 = (half of hyp) /6"

half of hyp. = 6"sqrt2 /2 = 3sqrt2" so than the length of hypotenuse will be 

equal 2*3sqrt2 = (6sqrt2)"
6 0
3 years ago
How much wrapping paper would you need to cover a rectangular box that is 18.25 inches by 12 inches by 3 inches if you need 10%
Reika [66]

Answer:

  681 square inches

Step-by-step explanation:

The surface area of a rectangular prism of dimensions L, W, and H is given by ...

  A = 2(LW +H(L+W))

The surface area of the given box is ...

  A = 2(12·3 +18.25(12 +3)) = 2(36 +273.75) = 619.5 . . . square inches

The amount of wrapping paper required is 10% more than this value, so is ...

  paper required = (1 +.10)(619.5) = 681.45 ≈ 681 . . . square inches

8 0
3 years ago
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