LIVE | 几何工具（模块2）基础能力测试

几何工具: 基础能力测试

LIVE课程将用最简单的语言将最复杂的数学概念去芜存菁。在开始上课前，让我们来确认你已经掌握了我们将在本课程中使用的基本概念。如果您在此测试中答出 80%以上的题目，同时在 place-out test 中得到低于 70%的分数，那么就从这个模块开始学习吧！这个测试对你来说应该很容易，因为它只是基础能力测试。

考试时间还剩下：

10:00

What is this shape called?

Kite

Parallelogram

Rhombus

Tetrahedron

Trapezoid

These two lines are perpendicular. How many degrees are in the marked angle?

$25^\circ$

$75^\circ$

$90^\circ$

$270^\circ$

$365^\circ$

What is the area of this triangle?

$14$

$20$

$40$

$4 \sqrt{10}$

$\sqrt{4^2 + 10^2}$

What is the length of the hypotenuse of this right triangle?

$3$

$\displaystyle \frac{20}{3}$

$\sqrt{41}$

$2 \sqrt{20}$

$\sqrt{4} + \sqrt{5}$

Line segment $AC$ has length $120,$ and point $B$ splits it into two parts, where $AB$ is $\frac{2}{3}$ as long as $BC.$ How long is $AB?$

$36$

$40$

$48$

$60$

$80$

A circle has area $9.$ What is its circumference?

$9 \pi$

$18 \pi$

$81 \pi$

$9 \pi^2$

$6 \sqrt{\pi}$