I am not for sure but I think 1.13*10-4
1. 108
V= 1/2xhxbxl
=1/2x1.6x12.6x10.75
=108.36
~108
Answer:
3,4,5 forms a right triangle
1,2 ,9 does not form a triangle
Step-by-step explanation:
Three side lengths that will form a triangle
3,4,5
This is a Pythagorean triple. It forms a right triangle
3^2 +4^2 = 5^2
9+16=25
25=25
Three side lengths that will not form a triangle
1,2 9
The sum of the two smaller sides must be greater then the third
1+2 < 9 not greater
I think it would be the second option
Given:
height : 3 feet
base : 19 feet
Area of a triangle = (height * base) ÷ 2
A = (3 ft * 19 ft) ÷ 2
A = 57 ft² ÷ 2
A = 28.5 ft²
The area of the figure is 28.5 ft². Choice A.