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Let ∆ ABC ~ ∆ DEF and their areas be, respectively, 64 cm2 and 121 cm2. If EF = 15.4 cm, find BC
Here it is given that ΔABC ~ ΔDEF
Given, EF = 15.4 cm
Therefore, Area of ΔABC / Area of ΔDEF = (BC)2/(EF)2
64 cm2 / 121 cm2 = (BC)2/(15.4)2
(BC)² = [(15.4)2 × 64] / 121
BC = (15.4 × 8) / 11
BC = 11.2 cm
Let ∆ ABC ~ ∆ DEF and their areas be, respectively, 64 cm² and 121 cm². If EF = 15.4 cm, find BC
NCERT Class 10 Maths Solutions Chapter 6 Exercise 6.4 Question 1
Let ∆ ABC ~ ∆ DEF and their areas be, respectively, 64 cm2 and 121 cm2. If EF = 15.4 cm, then the value of BC is 11.2 cm.
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