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3 years ago

In triangle abc angle b is equal to 45 , a is equal to 24ft, and c is equal to 30ft. find b

Mathematics

1 answer:

lesantik [10]3 years ago

3 0

If angle a is 24ft and angle c is 30ft, then angle b is 126ft.

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What is the surface area of a cylinder that is 5 centimeters high and has a diameter of 1.5 centimeters?

olchik [2.2K]

The surface area of cylinder is 8.625 $\pi$ $cm^{2}$ , if the cylinder has 5 centimeters high and 1.5 cm of diameter.

Step-by-step explanation:

The given is,

Cylinder has a 5 centimeters height

Diameter of the cylinder is 1.5 centimeters

Step:1

Formula for the surface area of cylinder is,

$A=2\pi r h + 2\pi r^{2}$ ......................................(1)

Where,

h - Height of cylinder

r - Radius of cylinder

From the values of h and r,

$r=\frac{d}{2}$

= $\frac{1.5}{2}$

r = 0.75 cm

From the formula,

= ( 2 × $\pi$ × 0.75 × 5 ) + ( 2 × $\pi$ × $0.75^{2}$ )

= ( 7.5 $\pi$ ) + ( 1.125 $\pi$ )

A = 8.625 $\pi$ $cm^{2}$

Result:

The surface area of cylinder is 8.625 $\pi$ $cm^{2}$ , if the cylinder has 5 centimeters high and 1.5 cm of diameter.

3 0

4 years ago

How many times greater os 46 than 0.46?

Usimov [2.4K]

10,000 times greater.

7 0

3 years ago

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For Xavier's lemonade recipe, 6 lemons are required to make 4 cups of lemonade. At what rate are lemons being used in cups of le

dusya [7]

Answer:

Since 6 lemons are used to make 4 cups of lemonade, then are used $\frac{6}{4} =\frac{3}{2}$ of lemon per cup of lemonade, or are make $\frac{4}{6}=\frac{2}{3}$ cups of lemonade per lemon.

7 0

3 years ago

Patti puts 40 marbles in a bag. Each marble has 3 grams. What us the total mass of the bag of marbles? in grams?

JulijaS [17]

I believe that the answer is 120 marbles.<span />

4 0

3 years ago

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Help!!! Please help urgently!

valentina_108 [34]

Answer:

x = 18

Step-by-step explanation:

25 + 20 = 45

Proportions:

45 ⇒ 50

20 ⇒ x

x = 45*20/50

x = 18

6 0

1 year ago