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Rudik [331]
3 years ago
15

Find the area of an equilateral triangle whose value is 18 cm​

Mathematics
2 answers:
rusak2 [61]3 years ago
3 0

Answer:

18 + 18 + 18 = 18 \times 3 = 54

Step-by-step explanation:

I ain't sure but it might help you out:D

muminat3 years ago
3 0

Answer:

140.3 cm²

Step-by-step explanation:

area of an equilateral triangle

=   \frac{\sqrt{3} }{4}  {a}^{2}

where a is the side of the triangle

= \frac{ \sqrt{3} }{4}  \times  {18}^{2}  \\  = 140.3 \: cm {}^{2}

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Sandeep uses 1/5 of a cup of vinegar in his salad dressing recipe. How much vinegar would Sandeep use to make 4/5 of a recipe?
Westkost [7]

Answer:

4 /25

Step-by-step explanation:

Given that :

Cup of vinegar used per recipe = 1/5 cup

Amount of vinegar to be used for 4/5 of a recipe ;

1 cup recipe = 1/5 cup vinegar

4/5 cup recipe = x

Cross multiply :

x = 1/5 * 4/5

x = 4/25 cup

Hence, Sandeep will use 4/25 cup of vinegar

6 0
3 years ago
What is the volume of a rectangular prism with the dimensions: base 2 3 /8 cm, height 1 1/3 cm, and length 3 3 /4 cm?
Ugo [173]

Answer: 11.84 cm³


Step-by-step explanation:

1. Let's rewrite the given dimensions (expressed as mixed numbers) as decimals. Divide the numerator by the denominator of the fractional part and add the result to whole number part. Then:

2^\frac{3}{8}cm=(2+0.375)cm=2.375cm\\1^\frac{1}{3}=(1+0.333)cm=1.333cm\\3^\frac{3}{4}=(3+0.75)cm=3.75cm

2. Then, to calculate the volume you must multiply its dimensions. Therefore, you obtain the following result:

V=2.375cm*3.75cm*1.33cm\\V=11.84cm^{3}


5 0
3 years ago
Read 2 more answers
8 + 5[(5 + 3)2 - (32 + 2)]
jeka57 [31]

Add: 5 + 3 = 8

Exponentiation: the result of step No. 1 ^ 2 = 8 ^ 2 = 64

Add: 32 + 2 = 34

Subtract: the result of step No. 2 - the result of step No. 3 = 64 - 34 = 30

Multiple: 5 * the result of step No. 4 = 5 * 30 = 150

Add: 8 + the result of step No. 5 = 8 + 150 = 158

plz mark me as brainliest :)

3 0
3 years ago
Read 2 more answers
What is the area of this??? i put it at 14 points!
Basile [38]

Answer:

99in squared

Step-by-step explanation:

Bottom square is 3 by 3, middle is 9 by 6, and trapezoid is 9 by 4.

3*3+9*6+9*4 is 99

Hope this helps plz mark brainliest if correct :D

3 0
3 years ago
5²+3³.2³/4³=?<br><br> Thanks...
solong [7]
5^{2} =25 \\  3^{3} =27 \\  2^{3} =8 \\  4^{3} =64 \\  \\ 27.8=216 \\ 216+25=241 \\  \\  \frac{241}{64} =3,76 \\  \\\framebox[1.1\width]{Good Luck!} \par
4 0
4 years ago
Read 2 more answers
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