Answer:
C. 146
Explanation:
We will split this figure into 4 pieces, the triangle at the bottom, the triangles on the left and the right and the rectangle in the middle. The rectangle in the middle has a length of 4 and a width of 10 which makes an area of 40. The triangles on the left and right are the same, so the width of the figure is 14. We used 4 for the rectangle so there is 10 left over. Divide that in half. Each triangle has a base of 5, so the height of the triangle is 10. Each triangle has an area of 1/2 (5) (10) which is 25. The bottom triangle has a base of 14 . The height is the total height of 18 minus the height we used of 10. the bottom triangle has a height of 8. The area of the triangle is 1/2 (8) * 14 =56. We add the total together of the 4 shapes. 40+25+25+56 =146