for the following right triangle, find the side length $x$. round your answer to the nearest hundredth.

for the following right triangle, find the side length $x$. round your answer to the nearest hundredth.

for the following right triangle, find the side length $x$. round your answer to the nearest hundredth.

Answer

Explanation:

Step1: 应用勾股定理

已知直角三角形斜边为18,一条直角边为10,设另一条直角边为$x$,根据勾股定理$a^2+b^2=c^2$($c$为斜边),可得$x^2 + 10^2 = 18^2$。

Step2: 移项求$x^2$

$x^2 = 18^2 - 10^2$ 计算得$x^2 = 324 - 100 = 224$

Step3: 开方求$x$并取近似值

$x = \sqrt{224} \approx 14.97$

Answer:

14.97