If `A B C` and `D E F` are similar triangles such that `/_A=47o` and `/_E=83o` , then `/_C=` `50o` (b) `60o` (c) `70o` (d) `80o`

If ABC and DEF are similar triangles such that /_A=47o and /_E=83o, then /_C=50o(b)60o(c)70o(d)80o

If /_\A B C and /_\D E F are similar triangles such that /_A=47^0 and /_E=83^0 , then /_C= (a) 50^0 (b) 60^0 (c) 70^0 (d) 80^0

If ABC and DEF are similar triangles such that /_A=57o and /_E=73o, what is the measure of /_C?

In triangles ABC and DEF/_A=/_/_E=40o,AB:ED=AC:EF and /_F=65o, then /_B=35o(b)65o(c)75o (d) 85o

In an isosceles triangle A B C if A C=B C and A B^2=2A C^2 , then /_C= 30o (b) 45o (c) 90o (d) 60o

If tangents PA and PB from a point P to a circle with centre O are inclined to each other at an angle of 80o then /_POA is equal to 50o (b) 60o(c)70o (d) 80o

In Figure, A O B is a straight line. If /_A O C+/_B O D=85^0, then /_C O D= (a)85^0 (b) 90^0 (c) 95^0 (d) 100^0

In Figure, A O B is a straight line. If /_A O C+/_B O D=85^0, then /_C O D= (a) 85^0 (b) 90^0 (c) 95^0 (d) 100^0

If ray O C stands on line A B such that /_A O C=/_C O B , then show that /_A O C=90^0

If A B , B C a n d C D are equal chords of a circle with O as centre and A D diameter, then /_A O B= 60^0 (b) 90^0 (c) 120^0 (d) none of these