Good morning,
Answer:
Step-by-step explanation:
There are 2 similar triangles with a ratio of 10-40 Then:
the area of THe bigger triangle equal to (40/10)²×(the area of THe smaller one)
then the area of THe bigger triangle equal to 4²×(the area of THe smaller one)
the area of THe bigger triangle equal to 16×(the area of THe smaller one)
the area of THe bigger triangle equal to 16×5
the area of THe bigger triangle equal to 80.
:)