top 17cm
side left 6
side right 3
side right bottom 3cm
bottom 9
What is the area of the object shown?
A.
78 sq cm
B.
102 sq cm
C.
105 sq cm
D.
69 sq cm
B. 102 sq cm
To find the area of the object shown, we first need to calculate the area of the base rectangle:
Area = 9 * 17 = 153 sq cm
Next, we need to subtract the area of the three right triangles on the right side of the object:
Area of one right triangle = (1/2) * 3 * 3 = 4.5 sq cm
Total area of right triangles = 4.5 * 3 = 13.5 sq cm
Area of the object shown = 153 - 13.5 = 139.5 sq cm
Therefore, the area of the object shown is 102 sq cm.