Geometry - Cube and Cuboid (Edges, Vertices, Faces)
The surface area of PWXQ is 15 square cm.If PWXQ and RSZY are to be covered with silver paper, what is the area of that paper?
a :
25 Chausemi
b :
15 Chausemi
c :
30 Chausemi
d :
45 Chausemi
Explanation :
Given : Area of surface PWXQ = 15 sq. From the semidiagram it can be seen that PWXQ and RSZY are similar (same) surfaces. Therefore, RSZY also has area =15 sq. cm Total area to be covered with silver paper = PWXQ + RSZY = 15 + 15 =30 Sq. cm