3 years ago

How do you find the surface area of a cube

Mathematics

1 answer:

lianna [129]3 years ago

6 0

Find the surface area of one side and multiply it by 6

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A rectangle is three times as long as it is wide.If it has a perimiter of 64 cm.find its area.

inessss [21]

Answer:

i think you would just do 64+64+64=

Step-by-step explanation:

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3 years ago

Help please :). I hate trigonometry

elena-s [515]

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Step-by-step explanation:

SinΘ= opposite/hypotenuse

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3 years ago

Beth poured the same amount of juice into 10 glasses.She used 2 quarts of juice.How much juice is in each glass

agasfer [191]

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3 years ago

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mariarad [96]

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3 years ago

In triangle ABC, AB = 11 cm, BC = 9 cm and CA = 10 cm. Find the area of triangle ABC.

max2010maxim [7]

Answer:

Area = 42.43 square cm

Step-by-step explanation:

Using Heron's Formula :

$Area = \sqrt{s\times (s-a) \times (s-b) \times(s -c)} \ , \ where \ s \ =\ \frac{a+ b+ c}{2}$

Find Area :

$s = \frac{11 + 9 + 10 }{2} = \frac{30}{2} = 15$

$Area = \sqrt{15 \times ( 15 - 11 ) \times { (15 - 9 ) \times ( 15 -10)}\\\\$

$= \sqrt{15 \times 4 \times 6 \times 5}\\\\=\sqrt{1800}$

$= 42 . 43 \ cm^2$

7 0

3 years ago