Answer:
44 square cm
Step-by-step explanation:
Total Area = Area of triangle + Area of rectangle
= (1/2 * base * height) + (Length*Width)
= (1/2 × 8 × 6) + ( 10 × 2)
= 24 + 20
= 44 square cm
All Ages:- 9, 13, 9, 10, 10, 9, 10, 10, 11, 9
No. of ages = 10
Mean = 
Mean of all Ages = 10 years
<h3>Hope This Helps</h3>