Can the sides of a triangle have lengths 1, 3, and 4?

Let's see.

We need to use a^2 + b^2 = c^2.

(1)^2 + (3)^2 = 4^2

1 + 9 = 16

10 DOES NOT EQUAL 16.

So, the answer to your question is no.

on your paper it doesn't say the answer but the the answer is altitude

step-by-step explanation:

so the rectangle is 80cm (area)

now to find the area of a triangle.

base times height.

4 times 8.

your answer is 96cm.

hope this .