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B. 12 square feet

Step-by-step explanation:

Each triangle has a base of 4 ft and a height of 3 ft. The areas of the triangles are equal.

A = 2bh/2 = bh = 4 ft * 3 ft = 12 square feet

B. 12 square feet

12 square feet.

Step-by-step explanation:

The formula for the area of a triangle is A =

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.

then, the surface area of the sphere shown in the image is: 256π sq. units!

step-by-step explanation:

the lateral surface area of a sphere is 2πrh where h=2r.

then:

surface area = 4πr^2.

in this case, r=8 units ⇒ surface area = 4π(8 units)^2. = 256π sq. units!

then, the surface area of the sphere shown in the image is: 256π sq. units!

the correct answer is a.) bc< mn 5 stars if this you : )

step-by-step explanation: