Question

A isosceles triangular plane with shorter side
of length 50 and longer two sides of length
100 mm is kept with shorter side on H.P. plane
is kept in such a way its top view is equilateral
triangle. Angle of the plane with H.P.is
between.​

Answer 1

Answer:

Explanation:

26 to 50 digree

Answer 2

60 degrees

Step-by-step explanation:

• Let x be the angle between the plane of the triangle and the horizontal plane

• A'C=A'B=BC=50 since ΔA'BC is given to be an equilateral triangle

• Now from the figure, we can see that,

for the ΔA'AC, where ∠AA'C=90

A'C= AC*cos(x)

cos(x) =A'C/AC

 =50/100

cos(x) =1/2

x= 60

hence, Angle of the plane with H.P.is between 60°