Q1. In the above figure triangle ABC is inscribed in a circle with center at E AE when produced meets BC at point D. If angle ABE is 30 degree and AEC is 140 degree, find BEC. a. 120 Q2. SanX in a right angle triangle is defined as SanX = Hypotenuse / (Sum of the other two sides of the triangle) In the below right triangle DEF, angle D is 30°, and side DF is 3 inches. What is SanX? a. 2sqrt(3)/ [ 3 + sqrt(3) ] |
|||
|
|
 |
Triangle & Cirle
Q-1
here angle AEB=120 & EAC=20 & ECA=20 & now total 360 so angle BEC=100
Little Star
n/a
Q-2
here tan30=(d/3) so d=sqrt3, sin30=(sqrt3/f) so f=2sqrt3
so ans is 2sqrt3/(3+sqrt3)
Little Star
n/a
Post new comment