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never [62]
3 years ago
9

I have been given the short leg in this 30-60-90 triangle. How do I find the long leg?

Mathematics
1 answer:
Alexxx [7]3 years ago
7 0

Answer:

Please check the answer below.

Step-by-step explanation:

You have been given the short leg in this 30-60-90 triangle.

You must remember that

  • The shortest leg is across from the m∠30°,
  • Hypotenuse is twice the length of the the shortest leg,
  • In order to find the long leg, all you need is to multiply the short leg by \sqrt{3} (commonly known as the square root of 3).

For example, if you have the hypotenuse with length 14 units.

In order to get the short side, just divide by 2. i.e. 14/2 = 7 units

In order to find the long leg, all you need is to multiply the short leg by \sqrt{3}.

i.e. 7 × \sqrt{3}.

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Sliva [168]

Answer:

i. x^{2} + 26x + 144 - 299 = 0

ii. x = 5

Step-by-step explanation:

The area of the figure = 299 cm²

The figure has a shape of a rectangle, so that;

Area of rectangle = length x width

length of the figure = 18 + x

width of the figure = 8 + x

Area of the figure = (18 + x) x (8 + x)

299 = (18 + x) x (8 + x)

299 = x^{2} + 26x + 144

x^{2} + 26x + 144 - 299 = 0

x^{2} + 26x - 155 = 0

applying the trigonometric formula;

x = (-b ± \sqrt{b^{2} - 4ac}) ÷ 2a

= (-26 ± \sqrt{(26)^{2} - 4(1*-155)}) ÷ 2

= (-26 ± \sqrt{676 +620}) ÷ 2

= (-26 ± \sqrt{1296}) ÷ 2

= (-26 ± 36) ÷ 2

x = (-26 + 36) ÷ 2  OR x = (-26 -36) ÷ 2

  = 10 ÷ 2 OR -62 ÷ 2

  = 5 OR -31

Thus, x = 5

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3 years ago
Will name brainliest
LenaWriter [7]

Step-by-step explanation:

ii) reflexive property

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2 years ago
What is the equation, in slope-intercept form, for the line that passes through the point (2, −3) and is perpendicular to the li
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Answer:

The equation is;

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Step-by-step explanation:

The equation of a straight line can be given as y = mx + b

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Now, we need the slope of a line perpendicular to this,

If two lines are perpendicular, the result of the product of their slopes is -1

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Mathematically, we have the slope in the point slope form as ;

y+3 = -1/25 (x - 2)

y = -x/25 + 2/25

y = -x/25 + 2/25 - 3

y = -x/25 -73/25

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2 years ago
Given the equation shown, what is the coordinates of the center? *
horrorfan [7]

Answer:(12,-5)

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