You may remember that the area of a triangle is A=12B⋅H, where B is the base of the triangle and H is the height. Suppose that the area of a triangle is 9 square feet, and the base is 2 times the height. Find the base of the triangle, in feet.

Do not type the units in your answer.

The base of the triangle is 6feets given that the area of the triangle is 9 square feet.

Given that the area of a triangle is expressed as:

b is the base of the triangle

h is the height of the triangle

Given that A = 9 square feet

If the base is 2 times the height, then

Substitute b=2h into the area of the triangle above:

Get the base of the triangle:

Recall that b = 2h

Hence the base of the triangle is 6feets.

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Step-by-step explanation:

Assuming that the base is b and the height is h:

Substitute:

Hope this helps!

step-by-step explanation:

hans did not square the 40-unit side; he merely multiplied it by 2.   incorrect.

option: d is the correct answer.

d) none of the above.

step-by-step explanation:

clearly from the figure attached to the question we could see that there is no shape given. hence without any shape given in the figure and after rotation we can't obtained a square pyramid.

since, to obtain a image we need a proper figure of the pre-image so that it can be transformed.

hence, the correct answer is:

d) none of the above.

step-by-step explanation: