ΔABC ∼ΔDEF, Area of ΔABC = 64Cm2 and area of ΔDEF = 121 cm2, If EF = 15.4cm then find
BC.
OR
In ΔABC, DE∥BC, AD = x+1, DB = x – 1, AE = x+3 and CE = x, find x.
Answers
Answered by
1
as we know thwt when two triangles are the similar then the ratio of area of two triangles is equal to ratio of square of corresponding sides.
therefore.
area (ABC)/area(DEF)= (bc/ef)^2
bc/ef = root64/root121
bc/ef= 8/11
bc/15.4=8/11
bc= 15.4×8/11
bc= 11.2
hope it helps.
please mark it as brainliest.
Similar questions