Split the shape into two shapes
A square
Area = L x H = 20 x 21 = 240 cm2
A right angle triangle
Area of right angle triangle = L x H divided by 2
20 x 21 = 240 divided by 2 = 120 cm2
Add both areas
240 + 120 = 360 cm2
Answer:
48 sq inches
Step-by-step explanation:
Given that,
Ribbon used around a bulletin broard is 28 inches
The length of her board is 6 inches
Let B is breadth of her board. 28 inches is perimeter. The perimeter of rectangle is given by :
P = 2(L+B)
28=2(6+B)
14=6+B
B=8 inches
The area of a rectangle is given by :
A = L×B
A = 8×6
A=48 sq inches
So, the area of her board is 48 sq inches
Answer: 177 months
Step-by-step explanation: