Question

ABC is an acute angled triangle inscribed in a circle of radius 5cm and center at oO the sine of angleA is equalto 3/5 then calculate length of BC

Answer 1

Given:

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

To find:

Calculate length of BC

Solution:

From given, we have,

ABC is an acute-angled triangle inscribed in a circle of radius 5cm and centre at oO the sine of angle A is equal to 3/5

Consider the attached figure while going through the following steps.

BC = 2a = 2R sin A

= 2 × 5 × 3/5

= 6 cm

Therefore, the length of BC is 6 cm