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3 years ago

What is the complementary angle of an angle that measures 30 degrees?

Mathematics

2 answers:

sergejj [24]3 years ago

6 0

Answer:

Step-by-step explanation:

Complementary angles means that the angles add up to 90 degrees

So the complementary of 30 is 60

30+60=90

Nady [450]3 years ago

5 0

Let the other Complementary Angle be x,

We know that, Sum of Complementary Angles = 90°

therefore,

$x + 30\degree = 90\degree$

$x = 90\degree - 30\degree$

$x = 60\degree$

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Read 2 more answers

Consider a rectangle of length L inches and width W inches. Find a formula for the perimeter of the rectangle. Use upper case le

malfutka [58]

Answer:

a) P=2(L+W)

b) $\frac{dp}{dt}=2\frac{dL}{dt}+2\frac{dW}{dt}$

c)-2 inch/hour

Step-by-step explanation:

given:

length of the rectangle as L inches

width of the rectangle as W inches

a) The perimeter is defined as <u>the measure of the exterior boundaries</u>

therefore, for the rectangle the perimeter 'P' will be

P= length of AB+BC+CD+DA (A,B,C and D are marked on the figure attached)

Now from figure

P= L+W+L+W

=> P=2L+2W .....................(1)

b)now dp/dt can be found as by differentiating the equation (1)

$\frac{dP}{dt}=2(\frac{dL}{dt} )+2(\frac{dW}{dt} )$ .............(2)

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L=40 inches

W=104 inches

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substituting the above values in the equation (2) we get

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