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How many squared meters are in 30 cm squared?
.3 m^2
The measure of angle 1 is 50 degrees and the measure of arc PS is 70 degrees Find the measure of arc QR?
30 degrees
What is the answer if you have 70 and 30 in a triangle but you need to find out how much the other angle is?
180 degrees in a triangle 180-70-30 = 80 The other angle is 80 degrees
What is 30 squared plus B squared equals 78 squared?
First you square root everything on both sides to cancel the squares. 30+B=78 Then subtract 30 from both sides to get B=48. So the answer is B=48
The perimeter of an equilateral triangle is 45 centimetersFind the length of an altitude?
Each side of the triangle is 45cm/3=15cm. The altitude divides the base into two equal segments of 7.5cm. This results in a right triangle with hypotenuse 15 cm and base 7.5cm. Pythagorus tells us a2+b2=c2 where a=altitude, b=base, c=hypotenuse. a2=c2-b2=152-7.52=225-56.25=168.75, a=12.99cm. Alternatively, the 3 angles of an equilateral triangle are all 60 degrees. The altitude divides one of these angles into two 30 degree angles. The cosine of 30 degrees is the opposite divided by the adjacent side. The adjacent side is the altitude. Thus a/c=cosine of 30 degrees, a=c X cos30 degrees = 15X0.866=12.99cm
How do you turn cosine of 30 degrees into a fraction?
Cos(30) = sqrt(3)/2 = 0.866025403.... ( Which is irrational).
What is cosine 30 degrees?
0.866 ( or (sqrt 3)/2 )
What the only formula you can find the exact value of cosine 30?
Cosine(30) = sqrt(3)/2
Find a cos of some value?
To find the cosine of a specific angle, you can use a scientific calculator or refer to the unit circle. For example, the cosine of 0 degrees (or 0 radians) is 1, while the cosine of 90 degrees (or π/2 radians) is 0. Additionally, you can use trigonometric identities or tables for common angles such as 30 degrees (√3/2), 45 degrees (√2/2), and 60 degrees (1/2).
What is the cosine 30 degrees?
cos(30 deg) = sqrt(3)/2 = 0.8660 approx.
How do you find an angle using sine cosine tangent?
First make sure your calculator is in 'Degree Mode (D)'. Then using the 'Inverse' of 'Sin' , shown as 'ArcSin' or ' Sin^(-1)' . enter '0.5', followed by '=' . The answer should be '30' ( 30 degrees).
Which is the 30o-60o-right triangle theorem?
If its a 300-600-right angle triangle then the third angle must be 90 degrees. Then its base squared plus its height squared equals its hypotenuse squared usually written in the form of: a2+b2 = c2
How can a force be resolved in to rectangular components?
You would use trigonometry for that. If, for example, you have a force of magnitude 10 at an angle of 30 degrees: * The x-component is 10 times the cosine of 30 degrees * The y-component is 10 times the sine of 30 degrees Or better yet, learn to use the polar-->rectangular conversion on your scientific calculator.
How to find the exact value of arc sine and cosine and tangent?
mostly it comes from memorization. If sin 30 = 1/2, then arcsin (1/2) = 30
How do you find length of a hypotenuse of a 30 60 90 degree triangle is 7 cm what is the perimeter?
The length of the other two sides is 7 cosine (60) and 7 cosine (30)that is 3.5 and 6.062 cmthe perimeter = 7 + 3.5 + 6.062 = 16.562 cm
What is the measure of the acute angle that satisfies cosine x degrees equal square root of 3 divided by 2?
The acute angle ( x ) that satisfies ( \cos(x) = \frac{\sqrt{3}}{2} ) is ( 30^\circ ). This is because the cosine function gives this value at ( 30^\circ ) within the range of acute angles (0° to 90°). Therefore, the answer is ( x = 30^\circ ).
In a circle a 90 degrees sector has an area of 225 pie in squared What is the radius of the circle?
area = 225 pi = pi R squared/4 R = square root 900 = 30 in
