The formula of a square area is A = L²
so if A = 4x2 + 28x + 49, so the other length is <span>A. (2x + 7) feet
proof
L=</span>(2x + 7), L²= (2x + 7)² =4x2 + 28x + 49,
Answer:
84.05 square inches
Step-by-step explanation:
Given;
Area of N = 320×(4.1/8)^2 = 84.05 square inches
Answer:
How big are the other rooms
Answer:
I think so its neither
Step-by-step explanation:
I dont know
For the perimeter you have to consider the EXTERNAL SHAPE ONLY:
a) the perimeter of half a circle WITHOUT ITS DIAMETER is:
π.R - 2R → 3.14x1.5 - 2x1.5 → 1.71 cm
b) the perimeter of the rectangle WITHOUT THE UPPER SIDE is:
2.5+3+2.5 = 8 cm
Hence the perimeter of the figure is 1.71 + 8 = 9.71 cm
2) Area of the figure:
Area of half circle is π.R²/2 →3.14 x (1.5)²/2 → Area half circle = 3.5325 cm²
Area of rectangle = 2.5 x 3 = 7.5 cm²
Total area = 3.5325 + 7.5 = 11.0325 ≈ 11 cm²
