triangle ABC and triangle PQR are equilateral triangles . If triangles ABC : triangle PQR = 1:2 and AB=4 find DE
Answers
Answered by
2
Answer:
Consider , A(ΔABC):A(ΔDEF) = 1 :2
⇒
A(ΔDEF)
A(ΔABC)
=
2
1
⇒
DE
2
AB
2
=
2
1
⇒DE
2
=2AB
2
⇒DE
2
=2×4
2
[∴AB=4]
⇒DE=
32
⇒DE=4
2
Similar questions