Question

substract 2 numbers to get the answer 490.like that 2 pairs.

substract 2 numbers to get The answer 200.like that 4 pairs.
please help me with this ​

Answer 1

Answer:

1

980 - 490

1470 - 980

2

400 - 200

600 - 400

Answer 2

Answer:

महानगरीय जीवन

Given: In △ABC,D and E are midpoints of AB and AC respectively,

i.e., AD=DB and AE=EC

To Prove: DE∥BC

Proof:

Since, AD=DB

∴DBAD=1............(1)

Also,

AE=EC

∴ECAE=1............(2)

From (1) and (2),

DBAD = ECAE =1

i.e.,DBAD = ECAE

∴ By converse of Basic Proportionality theorem,

DE∥BC

महानगरीय जीवन