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  • Question #98679 - Socratic
    The area of the circle is 9picm^2 or 28 26cm^2 From the perimeter (circumference) of a circle, we can calculate the radius, which we can then use to calculate the area of the circle The formula for circumference of a circle is: C=2pir, where C=Circumference, and r=radius Using the given data: 6pi=2pir Cancel the like terms on both sides 6cancelpi=2cancelpir Divide both sides by 2 3=r Now
  • A triangle has corners at (4 ,6 ), (2 ,9 ), and (8 ,4 ). What is the . . .
    Area of circumscribed circle is 194 5068 If the sides of a triangle are a, b and c, then the area of the triangle Delta is given by the formula Delta=sqrt (s (s-a) (s-b) (s-c)), where s=1 2 (a+b+c) and radius of circumscribed circle is (abc) (4Delta) Hence let us find the sides of triangle formed by (4,6), (2,9) and (8,4) This will be surely distance between pair of points, which is a=sqrt
  • A triangle has corners at # (2 , 9 )#, # (3 ,9 )#, and # (4 . . . - Socratic
    Area of a triangle equals to half of a product of its perimeter by a radius of an inscribed circle: let #p= (a+b+c) 2# and #r# is a radius of an inscribed circle, then #S=p*r# The derivation of both formulas for area of a triangle can be found in the course of advanced mathematics at Unizor These two expressions for an area must be equal, therefore
  • Circumference and Area of Circles - Socratic
    Questions What is the circumference of a 15-inch circle if the diameter of a circle is directly proportional to its radius and a circle with a 2-inch diameter has a circumference of approximately 6 28 inches? If the radius of a circle is 4cm, what is the area? How do you find the circumference of a circle with a diameter of 6 cm? How much will it cost to paint a circular sign with a radius of
  • A solid consists of a cone on top of a cylinder with a . . . - Socratic
    V_T=pir^2 (h_1 3+h_2) We need to calculate r in order to calculate the area of the base of the cylinder, hence we fill in the data given 150pi=pir^2 (39 3+17) We cancel the like term (pi) on each side 150cancelpi=cancelpir^2 (39 3+17) 150=r^2 (13+17) 150=r^2xx30 Divide both sides by 30 150 30=r^2 5=r^2 The formula of area of the base of a
  • A triangle has corners at # (3 , 2 )#, # (6 ,7 )#, and # (2 . . . - Socratic
    A triangle has corners at # (3 , 2 )#, # (6 ,7 )#, and # (2 ,4 )# What is the radius of the triangle's inscribed circle? GeometryCirclesArea of Inscribed Triangle
  • Site Map - Distance Formula Questions and Videos | Socratic
    Questions and Videos on Distance Formula, within Algebra
  • Distance between Points Questions and Videos - Socratic
    On a piece of graph paper, plot the following points: A (0, 0), B (5, 0), and C (2, 4) These coordinates will be the vertices of a triangle Using the Midpoint Formula, what are the midpoints of the triangle's side, segments AB, BC, and CA?
  • Two opposite sides of a parallelogram have lengths of
    Let h be the (perpendicular) height extending from one of the bases that measures length b = 8 to the other base having the same length since A = bh = 8h is the area of the parallelogram, we have 8h = 12 h = 12 8 = 3 2 is its height Let c be the length of one of the unknown sides From basic trigonometry, sin(π 8) = h c We may obtain the value of sin(π 8) from the half-angle formula for
  • Toni S. on Socratic
    Toni S gets smarter on Socratic Toni S joined Socratic 7 038356164383561 years ago Toni S hasn't written a biography yet





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