Surface Area of a Square Pyramid
POINT
四角すいの表面積は底面の正方形と4枚の三角形の面積を足します。三角形の高さは側面上の高さです。
EXAMPLE
Find the surface area of a square pyramid with base edge 6 cm and triangular-face height 8 cm.
Practice
Find the surface area of each square pyramid.
01
Base edge: 4 cm
Height of each triangular face: 5 cm
Height of each triangular face: 5 cm
\(56\,\mathrm{cm}^2\)
02
Base edge: 8 cm
Height of each triangular face: 7 cm
Height of each triangular face: 7 cm
\(176\,\mathrm{cm}^2\)
03
Base edge: 10 cm
Height of each triangular face: 9 cm
Height of each triangular face: 9 cm
\(280\,\mathrm{cm}^2\)
04
Base edge: 12 cm
Height of each triangular face: 10 cm
Height of each triangular face: 10 cm
\(384\,\mathrm{cm}^2\)
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