Math, asked by dipalisamaddar9249, 4 months ago

please answer both........ it's urgent

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Answered by muktachandgude2004

0

Answer:

measure of angle DEC =50°

Answered by gajendrasahu9323

1

Step-by-step explanation:

1) Coefficient of Y is -4

2) 1m = 70m cloth/ 70 students

3) <DEC = 90°- 40°= 50°

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