Question

Please help with this because im crying over this work right now

Answer 1

area of triangle is

$\frac{1}{2} \times length \times height$

area = 1/2×16×20

area=160mm²

this is the area of first triangle

in question we have 5 triangles so multiple this area with 5

5×160 = 800mm²

now add base area with this to get allover area

800+440 = 1240mm²

1240mm² is the answer