Q13Multiple choice
We have 4 congruent equilateral triangles. What do we need more to make a pyramid?
- (a)An equilateral triangle.
- (b)A square with same side length as of triangle.
- (c)2 equilateral triangles with side length same as triangle.
- (d)2 squares with side length same as triangle. 1. Explain how to find the surface area of a solid from the net for that solid. 2. Here is a net for a rectangular solid. Take whatever measurements you think are necessary to find the solid’s volume and surface area. Explain what measurements you took and what you did with them. The surface area of a three-dimensional object is the space covering the object’s surface. If you could pick up the object and flatten it so you could see all sides at once, the area of the flat figure would be the surface area. (Don’t forget to count the bottom surface!) Surface area is also measured in square units.
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(b) A square with same side length as of triangle.