त्रिभुज#!#P.Y.Q

ABC is an equilateral triangle. P,Q and R are the midpoints of sides AB, BC and CA respectively. If the length of the side of the triangle ABC is 8 cm, then the area of triangle PQR is: ABC एक समबाहु त्रिभुज है | P, Q और R क्रमशः भुजाओं AB, BC तथा CA के मध्य बिंदु हैं | यदि त्रिभुज ABC की भुजा की लंबाई 8 सेमी है, तो त्रिभुज PQR का क्षेत्रफल कितना होगा ?

If H.C.F. of p and q is x and q=x y , then the L.C.M. of p and q is p q (b) q y (c) x y (d) p y

P ox Q means P is greater than Q. P underline(©) Q means P is either greater than or equal to Q. P = Q means P is equal to Q. P @ Q means P is smaller than Q. P underlinecancel("@") Q means P is either smaller than or equal to Q. Statements: Y ox N, T @ N, A = Y, J underline(©) A Conclusions: I. J = Y II. Y @ T

P @ Q means P is greater than Q. P underline"@" Q means P is either greater than or equal to Q. P = Q means P is equal to Q. P © Q means P is smaller than Q. P underline"©" Q means P is either smaller than or equal to Q. Statements: X "@" Y, Z underline"©" R, Y = Z Conclusions: I. X @ R II. Y = R

if the pth term of an A.P.is x and qth term is y, show tht the sum of (p+q) terms is (p+q)/(2)[x+y+((x-y)/(p-q))]