Answer:
Area of the triangle = 44.1 cm²
Explanation:
In the given triangle
area of the triangle = (1/2) × Base × height
and sin 63° = Height/ Hypotenuse = Height/11
0.891 = Height/11
Height = 11×0.891 = 9.80
Therefore Area of the triangle = (1/2)×9.80×9 = 44.1 cm²
answer is area = 44.1 cm²