Answer:
4. 28 sq. inch
Step-by-step explanation:
First, Area of the square = l² = 2² = 4
Area of the triangle = 1/2 x b x h
= 1/2 x 2 x 6
= 6
Total surface area = Area of square + 4 x area of triangle
= 4 + 4 x 6
= 28
342.21 rounded to the nearest tenth is 342.2. 49.29 rounded is 49.3. So 342.2 - 49.3 = 292.9
It already is in simplest form. In mixed fraction, it would be 9 1/7
