Help fast plsss will give brainliest pls

45m

Step-by-step explanation:

3*4.5 =13.5

7*4.5= 31.5

13.5+31.5= 45m

(you would do 4.5 because each triangles length is only half of the 9m across. you also would not have to divide by 2 like you usually would when finding the area of a triangle becuase there are 2 congruent triangles)

step-by-step explanation:

if u want da anser kill your teeser ifu hav wun

just do 5.2 + 2 ( 7.2) and 1/3 x 3 (.9) and youv'e got your equation. 0.9( 9/10) + 7.2 ^2 = 16.4 hope i could !

step-by-step explanation: