At a certain time of the day a post, 4 m tall, casts a shadow of 1.8 m. What is the angle of elevation of the sun at that time?
O point
46°65
65°46

i think its 65°46

Step-by-step explanation:

have a nice da

All the edges of the table base measure 25 inches.

Step-by-step explanation:

1. A square pyramid has a square for a base and four triangles for faces.

2. The four triangles of the square pyramid are equilateral triangles.

3. It is important to remember that an equilateral triangle is a triangle in which all three sides are equal.  In this case each side measures 25 inches.

4. The square base of the pyramid  measures 25 inches each side .

5. To obtain the height of the square pyramid, we use the formula of  the height of the equilateral triangle.

height =

where a is the measure of a side = 25 inches

height =

height = 21,65