Which solid has one base that is a triangle and three lateral surfaces that are triangles
1. triangles pyramid
2. triangles prism
3. rectangular prism
4. rectangular pyramid
1. Triangle pyramid
explain
A triangle pyramid is a solid geometric shape that has a triangular base and three lateral triangular surfaces that converge at the apex of the pyramid. The triangular base can be equilateral, isosceles or scalene, but it always has three sides forming a triangle shape. The lateral triangular surfaces are congruent and will always intersect at a single point above the base, forming an apex. The shape of a triangle pyramid can vary depending on the dimensions of the base and the height of the pyramid.
1. Triangular pyramid.
A triangular pyramid is a solid shape that has a base in the shape of a triangle and three lateral surfaces that are also triangles. Each lateral surface connects to the apex or top point of the pyramid.