Math, asked by gamesranaji, 8 hours ago

mcq. triangles class 10

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Answers

Answered by LakshayBro619

2

Answer:

a. angle D=30° , Ef= 12cm

Step-by-step explanation:

Angle A=angle D (CPST)

AC^2=BC^2+AB^2

On solving we get BC=12

Therefore ,BC=EF=12cm

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