1904

You visited us 1904 times! Enjoying our articles? Unlock Full Access!

Byju's Answer

Standard IX

Mathematics

Line from Vertex Divides the Length of Opposite Side and Area

In Δ ABC , D ...

Question

In ∆ABC, D, E and F are respectively mid points of BC, CA and AB. If the lengths of side AB, BC and CA are 7 cm, 8 cm and 9 cm respectively, the perimeter of ∆DEF will be

19 cm

No worries! We‘ve got your back. Try BYJU‘S free classes today!

15 cm

No worries! We‘ve got your back. Try BYJU‘S free classes today!

20 cm

No worries! We‘ve got your back. Try BYJU‘S free classes today!

12 cm

Right on! Give the BNAT exam to get a 100% scholarship for BYJUS courses

Open in App

Solution

The correct option is D
12 cm

Suggest Corrections

Similar questions

Q. In a

Δ

A B C

D, E, F

are respectively, the mid- points of

B C, C A, a n d A B

. If the lengths of side

A B

B C

and

C A

are

7 c m

8 c m

9 c m

, respectively, find the perimeter of

Δ

DEF.

In a $Δ A B C, D, E$ and F are respectively, the mid-points of BC, CA and AB. If the lengths of side AB, BC and CA are 7cm, 8cm and 9 cm, respectively, find the perimeter of $Δ D E F$ .

A circle is inscribed in ΔABC touching the sides AB, BC and CA at points D, E and F respectively. If AB= 10 cm, BC = 12 cm and CA = 8 cm, then the lengths of AD, BE and CF respectively will be

Q. In ∆ABC, AB = 5 cm, BC = 8 cm and CA = 7 cm. If D and E are respectively the mid-points of AB and BC, then DE = __________.

Q. Question 8
In

Δ A B C, A B = 5 c m

, BC = 8 cm and CA = 7 cm. If D and E are respectively the mid-points of AB and BC, determine the length of DE

Join BYJU'S Learning Program

In ∆ABC, D, E and F are respectively mid points of BC, CA and AB. If the lengths of side AB, BC and CA are 7 cm, 8 cm and 9 cm respectively, the perimeter of ∆DEF will be

The correct option is D 12 cm

The correct option is D
12 cm