Question

ABC is an acute-angled triangle inscribed in a circle of radius 5 cm and centre O. The sine of angle A is equal to 3/5
Calculate without using tables:
(i) the length of BC (ii) sin OBC (iii) sin BOC (iv) cos BOC.​

Answer 1

Answer:

Given: ABC is an acute angled triangle inscribed in a circle of radius 5cm and center at oO the sine of angleA is equalto 3/ ...