PLEASE HELP/

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Step-by-step explanation:

The formula for the volume of a square-based pyramid is:

V = a2(h/3), where "V" is equal to volume, "a" is equal to base edge, and "h" is equal to height.

You are given the value of the base edge (a = 6)

If the base edge is equal to (1/2)h, or (1/2)h = 6 then, 2(1/2)h = 2(6).  This gives you h = 12.

Now you just plug into your formula:

V = 62(12/3) = 36(4) = 144

pls mark brainliest.

109 is the nearest whole number/final answer! : )

proofs involving isosceles triangles often require special consideration because an isosceles triangle has several distinct properties that do not apply to normal triangles.(more about triangle types) therefore, when you are trying to prove that two triangles are congruent, and one or both triangles, are isosceles you have a few theorems that you can use to make your life easier.

step-by-step explanation:

an isosceles triangle has two congruent sides and two congruent angles. the congruent angles are called the base angles and the other angle is known as the vertex angle. ∠bac and ∠bca are the base angles of the triangle picture on the left. the vertex angle is ∠abc