InterviewSolution
Saved Bookmarks
| 1. |
Find the area of the circumcircle of a right triangle, if the base of the triangle is 1 cm and perpendicular of the triangle is 2 cm.1. 5π/4 cm22. 2π/3 cm23. π/2 cm24. 7π/4 cm2 |
|
Answer» Correct Answer - Option 1 : 5π/4 cm2 Given: Perpendicular = 2 cm and base = 1 cm Formula used: Radius of circumcircle of right angled triangle = Hypotenuse/2 Area of circle = πr2 Calculation: (Hypotenuse)2 = (perpendicular)2 + (base)2 ⇒ (1)2 + (2)2 ⇒ √5 cm Radius of circumcircle = √5/2 Area of circle = π(√5/2)2 ⇒ 5π/4 cm2 ∴ The area of circle is 5π/4 cm2 |
|