.........Phitagors theory
the answer for 1 2 and 3 is a c d
9-6a-24a^2
-3(8a^2+2a-3)
-3(2a-1)(4a+3)
a= 1/2, -3/4
Answer:
20.4
Step-by-step explanation:
The area of a triangle is calculated by A= (L x W) / 2, because every tringle is half of a square
12 x 3.4 = 40.8 40.8 / 2 = 20.4