In triangle ABC,AB =5cm,BC = 8cm and CA = 7cm. If D and E are respectively the mid point of AB and BC.,determine the length of DE.
Answers
Answered by
2
Step-by-step explanation:
DE=1/2 AC
DE =1/2×7
DE=3.5
Answered by
8
Answer:
3.5 cm
Step-by-step explanation:
AD = 1/2 of AB ( GIVEN )
=> AD = 1/2 of 5 cm
=> AD = 2.5 cm
By Midpoint theorm,
DE || AC
Now , DBE and ABC are equiangular triangles .
Therefore , DB/AB = DE/AC
=>2.5/5 = DE/7
=>DE= 2.5/5 × 7
=> DE = 1/2× 7 = 3.5 cm ( Ans. )
Similar questions