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Gnom [1K]
3 years ago
8

Symbolic 2 what is the area of a cirle of radius r? use r for the radius and pi for π. for help on entering a symbolic answer cl

ick on the symbolic formatting help link below.
Mathematics
1 answer:
Verdich [7]3 years ago
3 0
The area (A) of a circle of radius r is given by
  A = pi×r²
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How many parallelograms can be made if one angle measures 50 degrees and one side is 10 centimeters
Softa [21]
So we know that in case of a parallelogram the opposite sides and opposite angles are equal 
so than given that one angle measure 50 degrees so the opposite angle measure 50 degrees too and so in this way the other two opposite angles measures equal 360 -2*50 =360 -100 = 260 degrees so one to one will be 260/2 = 130 degrees 
- in this way bc. given that one side has a length of 10 cm so from this result that the opposite side has 10 cm too 
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4 0
3 years ago
Suppose a triangle has two sides of length 33 amd 37, and that the angle between these two sides is 120°. What is the length of
jeka57 [31]

Answer:

c = 60.65 cm

Step-by-step explanation:

Given that,

The two sides of a triangle are 33 cm and 37 cm.

The angle between these two sides is 120°.

We need to find the length of the third side of the triangle. Let c is the third side. Using cosine rule,

c^2=a^2+b^2-2ab\cos C

a = 33 cm, b = 37 cm and C is 120°

So,

c^2=(33)^2+(37)^2-2\times 33\times 37\cos (120)\\\\c=60.65\ cm

So, the length of the third side of the triangle is 60.65 cm.

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