Carcass wrote:
In the figure above, if RSTU is a rectangle, what is the value of a + b + c + d + e + f ?
enter your valueWe know in rectangle all angles are equal to 90 degree i.e angle r = angle s = angle t =angle u = 90 degree.
Now consider triangle RSX,
We have angle a + angle s +angle b = 180 degree
or angle a +angle b = 90 (since angle s = 90 degree)
Similarly in triangle XYT we have
angle c + angle d + angle t =180 degree
or angle c + angle d = 90 (since angle t = 90 degree)
and in triangle YRU
we have angle e +angle f + angle u =180 degree
or angle e + angle f =90 (since angle u = 90 degree)
Now putting the values in we get (a+b) +(c+d) + (e+f) = 90+90+90 = 270
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