The base of the ancient Egyptian pyramid is a square, and the four sides are all isosceles triangles. The top angle of each triangle is about 52°, and the approximate angle of each base is how many degrees.
古埃及金字塔的基底是正方形，四个侧面的形状都是等腰三角形，每个三角形的顶角约是52°，每个底角大约是多少°．
<gadget id="calculator">180 - 52</gadget>
<output>128</output>

<gadget id="calculator">128 / 2</gadget>
<output>64</output>

<result>64</result>