解析 12 cm 相似三角形的对应边成比例。已知△ABC∼△DEF,顶点对应顺序为A→D,B→E,C→F,因此对应边AB对应DE,BC对应EF。 比例关系为: (AB)/(DE) = (BC)/(EF) 代入已知数据: 4/8 = 6/(EF) 解方程得: EF = (6 * 8)/4 = 12 \, (cm) 故EF的长度为12厘米。
Kids will learn to identify different parts of a story, such as characters, settings, events, etc. Explore Stories and Their Key Elements Practice identifying main characters, events, and responses to stories Explore More! Explain how specific points the author or illustrator makes in a text a...
We are giventwo similar triangles: △ABC∼△DEC Ourobjectiveis to find the measure ofx: Since... Learn more about this topic: Similar Triangles | Theorems, Formula & Examples from Chapter 14/ Lesson 7 139K What are similar triangles? Learn about the three triangle similarity theorems ...
I used an ultra-wide lens. Ultra-wide lenses get darker in the corners, an effect called falloff. This makes the center relatively brighter, adding emphasis. This central emphasis, in addition to being red, is what grabs your eye and pulls you in from a mile away. This is what makes ...
For instance, photographers who capture fleeting instances of athletes in motion might only have their cameras open for 1/1000 of a second to freeze the exact moment when a basketball player makes a slam dunk. Aperture Aperture is the adjustable lens opening that controls the amount of light ...
A Reuleaux triangle, also called a spherical triangle, is a shape made with intersecting curves when circles are drawn from the vertices of an equilateral triangle. This shape has a constant width when rotated, which makes it useful for many purposes. Studied by the legendary likes of Leonardo...
Triangle XYZ is similar to triangle RST. What is the perimeter of {eq}\triangle RST {/eq}? A. 45 units B. 56.25 units C. 37.5 units D. 15 units Perimeter of a Triangle: A triangle is the simplest possible polygon and has three side...
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E.g. the variants of the plurality “-s” makes the allomorphs thereof in the following examples: map – maps, mouse – mice, ox – oxen, tooth – teeth, etc. 4. What is a word?A word is the smallest of the linguistic units that can constitute, by i...