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 (7 ,3 ), (5 ,8 ), and (4 ,6 ). What is the . . . Area of triangle's circumscribed circle is 25 16 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 (7,3), (5,8) and (4,6) This will be surely distance between pair of points, which is a=sqrt
Circumference and Area of Circles - Socratic If the diameter of a circle is #1 3*10^-12# meters, then what is its radius? If the diameter of the circle is 5 cm, what is the circumfrence and area of the figure?
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?
Site Map - Distance Formula Questions and Videos | Socratic Questions What is the Distance Formula? How can the distance formula be derived from the pythagorean theorem? How can the distance formula be used in real life? How do you find the distance when given two coordinate points? How do you find the distance between (7, 7) and (–7, 7)?
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
Question #08cc1 - Socratic See a solution process below: The formula for the circumference of a circle is: C = 2pir Where: C is the circumference of the circle r is the radius of the circle However, we also know; 2r = d Where: r is the radius of the circle d is the diameter of the circle We can rewrite the equation for the circumference of a circle as: C = 2pir = 2rpi = pid Substituting for C and solving for d gives
Site Map - Quadrilaterals Questions and Videos | Socratic What is the formula for finding the area of a quadrilateral? In a quadrilateral ABCD, P and R are the midpoints of AB and CD respectively Also, Q and S are points on the sides BC and DA respectively such that BQ=2QC and DS=2SA Prove that the area of the quadrilateral PQRS equals to half of the area of ABCD?
Question #fb4b5 - Socratic Yes, you use the formula for a cone volume to find the capacity depth = sqrt147 ~~12 1cm capacity ~~622 cm^3 C = 2*pi*r " and "V = 1 3 * pi * r_2^2* h Diameter = 28 cm , rarr r_1 = 14cm From the semicircular piece of metal we first find the circumference of the base of the cone, which is the same as ½ of the full circle, C = (2 * pi * r_1) 2