There are many synonyms for base: bottom, floor, lowest part, foundation, support, stand, foot, starting point, house, home, source, root, essence.
opposite
The antonym base of a mountain refers to the lowest point or bottom of the mountain, often called the mountain's foothill or base camp. It is the opposite of the peak or summit of the mountain, which is the highest point. The base of a mountain typically serves as a starting point for climbers or hikers to begin their ascent.
Base (metal). I think it is sand . Gold x sand
The "un-" prefix turns a word into its opposite.
protect. Un is the prefix meaning "the opposite of", or "not"; ed is the suffix meaning "in the past". Therefore, unprotected means--did not protect.
the oppposite OS the base of a mountain is the summit
the perpendicular distance from the base of a quadrilateral to the opposite side?
base
The base of a parallelogram is parallel to its opposite side.
The opposite of the base of a mountain is its peak or summit. The base of a mountain refers to the bottom or lowest point of the mountain, while the peak is the topmost point. It is the highest elevation of the mountain where the slopes converge.
opposite
By using the tangent ratio of: opposite/tangent angle = adjacent which is the base
The opposite of adenine in terms of base pairing in DNA is thymine, as they form a complementary base pair. In RNA, the opposite of adenine is uracil, which also pairs with adenine.
Vertex
Apex.
opposite
I'm assuming that you would be referring to the "peak" of a mountain. The peak of the mountain is generally the tallest point; thus opposite of the base.