Question

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Answer 1

12 square feet.

Explanation:

The formula for the area of a triangle is A =
`(l*w)/(2)`

So if you multiply 3 by 4 you get 12 then divide it by 2, which equals 6. Then you do the same with the second triangle, (3*4)/2 = 6. Now if you add the two areas you get 12 square feet.

Answer 2

B. 12 square feet

Explanation:

Upper triangle:

base = 4 ft

height = 3 ft

area = base × height/2

area = 4 × 3/2 ft²

area = 6 ft²

Lower triangle:

base = 4 ft

height = 3 ft

area = base × height/2

area = 4 × 3/2 ft²

area = 6 ft²

Total area = 6 ft² + 6 ft² = 12 ft²

Answer: B. 12 square feet