Prove: Quadrilateral BMDN is a parallelogram.D CN AB 相关知识点: 试题来源: 解析 First by proving △ADN≅△CBN , we get DN =BM. And since BM ⊥ AC and DN ⊥ AC, we get DN ∥ BM. Therefore, quadrilateral BMDN is a parallelogram. ...
44. In the diagram, ABC is a semi-circle with diam-eter AC, E B centre O and radius 1. Also, OB is perpendicular to AC. Using AB as a diameter, a second semi-circle AEB is drawn. The region inside this second semi-circle that lies outside the original semi-circle is shaded,...
Consider the triangle shown in the diagram below. Suppose that m{eq}\angle {/eq}A = {eq}{{83}^{\circ}} {/eq}, m{eq}\angle {/eq}C = {eq}{{34}^{\circ}} {/eq}, and c = 41.8. What is the value of a? Law of...
In the diagram below, $O$ is the center of the circle, and $\overline{UV}$ is a diameter. Find $\angle XYZ$, in degrees. Determine the radius and center of the following circle and sketch the graph of the circl...
RegisterkarteAnalysein der GruppeNavigateden EintragAnalysekostenaus. Die Seite "PortfolioKosten-Einschränkungs Analyse" wird geöffnet, in der die für diese Analyse ausgewählten Projekte, zugehörige Kosten Metriken und das effiziente grenz Diagramm in der unt...
解析 It is easy to prove that △AEF isan equilateral triangle, theref Or'C=30° so∠BAC=75°; therefore∠BAE=15°. 结果一 题目 In the diagram with △ABC, AC =BC, AE⊥BCatpOintE , F is the midpoint of AC, andFE = AE. Find the measure of ∠BAE.CFEBDiagram for Question ...
13.In the diagram, triangle AB C is isosceles with A B =AC,and AG is perpendicular to BC. Point Dis the midpoint of AB, point F is the midpoint of B G C AC,and E is the point of intersection of D F and AG. What fraction of the areaof ΔAB C does the shaded area represen...
Wat is een spreidingsdiagram voor Portfolioanalyse? Het spreidingsdiagram Portfolioanalyse, dat beschikbaar is op de pagina kostenbeperkingsanalyse van het gebied Project Online Portfolioanalyse, de projecten in uw portfolio tekenen op basis van kosten en waarden. ...
In the circuit diagram that's shown in the figure above, what is the voltage between point A and ground? The Voltage between a Point and the Ground In the analysis of circuits, it is sometimes convenient to reduce the circuit to an equivalent one, fo...
1. Why does the centre circle in Diagram A look smaller than that in Diagram B? A. something is wrong with our eyes B. the two circles are not the same size C. our brains interpret the information in a wrong way D. the two pictures change quickly from one to the other 2....