Question

等腰三角形的腰为a,底边为b 高为h a等于6加根号3 b等于6加4倍的根号3 求高和面积

Answer 1

根据勾股定理：（b/2)^2 + h^2 = a^2

h = √{a^2 - (b/2)^2} = √{6+√3)^2 - (3+2√3)^2} = √18 = 3√2

S=1/2bh = 1/2×（6+4√3）× 3√2 = 9√2 + 6√6