Question

6. If one angle of a triangle is 60° and the other two angles are in the ratio 1:2. then find the angles, 7. Find the value of x and y in the following: S. 60 R 50 8. Mohini walks 1200m due East and then 500m due North. How far is she from her starting point? 9. The hypotenuse of a right triangle is 17 cm long. If one of the remaining two sides is 8 cm in length, then the length of the other. 10. In the given figure, find x. A (5r -60° 2x + 40° 3.r - 80% B c​

Answer 1

9. By Pythagoras theorem,

hypotenuse²= side1²+side2²

17²=8²+side2²

289= 64+side2 ²

289-64= side2²

side2²= 225

Taking square root on both sides,

side 2=√225

side 2= 15cm