Question

deanna bought the poster shown below for her wall if a=11 cm,b=28cm,c=15cm,and d=17cm,what what is the area of the poster

Answer 1

B.409
you find the area of the rectangle which is 15 x 17 = 255
then you find the area of the triangle which is
(28 x 11)/2 =154
abs 154 + 255 = 409

Answer 2

409
`cm^(2)`

Explanation:

The area of the box wuld be c times d which is 15 times 17 which is 255.

the area of the triangle is
`(1)/(2)\\` (base x height) =
`(1)/(2)\\`(28 x 11) = 14 x 11 = 154

154 + 255 = 409. area of 2D shape's unit is squared, so 409
`cm^(2)`