Answer:
If it's perimeter, then its 23. If it's multiplying, then it's 810.
Step-by-step explanation: Please brainliest if possible!
Answer:
40.5 m²
Step-by-step explanation:
Area of the shaded = area of the square - area of the triangle
Area of square = s²
s = 9 m
Area of square = 9² = 81 m²
Area of triangle = ½*b*h
b = 9 m
h = 9 m
Area of triangle = ½*9*9 = 40.5 m²
Area of the shaded = 81 - 40.5 = 40.5 m²
Answer:
Area of the trapezoid = 
Step-by-step explanation:
Area of a trapezoid:
(1/2)*Sum of parallel opposite sides +Distance between the parallel sides
Parallel sides are: 2 cm and 4 cm
Distance between the parallel sides is 2 cm
Area of the trapezoid:

Area of the trapezoid is 
So we know that the width is 12 because 4 x 3 = 12. The formula to find the perimeter is Length + length + width + width. So you would do 3 + 3 + 12 + 12 = 30. Therefore the perimeter is 30 inches