ABCDEis a regular pentagon. The bisector of angleAmeets sideCDatP, then prove thatAPC=90∘. View Solution ABCD is a parallelogram. The bisector of angle A intersects CD at X and bisector of angle C intersects AB at Y. Is AXCY a parallelogram? Give reason. ...
Let ABCDE be a pentagon inscribed in a circle such that AB=CD=3, BC=DE=10 and AE=14. The sum of the lengths of all diagonals of ABCDE is equal to mn, where m and n are relatively prime positive integers. What is m n?( ) A. 129 B. 247 C. 353 D. 391 E. 421 相关知识...
A sandpi in the shape of a pentagon ABCDE is to bebuil in such a way that each of its sides are of equal lengthbut its angles are not all equal.The pentagon is symmetrical about DX, where X is themidpoint of AB.The angle AXE and BXC are both 45" and each sideis 2 m long.Fi...
ABCDE is a regular pentagon. FAD is an equilateral triangle, such that points F and E are on the same side of line AD . What is the measure (in degrees) of angle FAB ? Find the area of the following regular polygon with the given apothem and side length: hexagon, a = 12.1 feet,...
(1),Cindy bought a dress at 50% off the sale price, which is already $20 off the regular price. She paid $35. How much was the regular price? (2) A dress on sale in a shop is marked at $D. During the discount sale its price is reduced by 15%. Staff are allowed a further...
百度试题 结果1 题目All sides of the convex pentagon ABCDE are of equal length, and ∠A=∠B=90∘. What is the degree measure of ∠E?( )A. 90 B. 108 C. 120 D. 144 E. 150 相关知识点: 试题来源: 解析 E N/A. 反馈 收藏 ...
4At an elementary school,the students in third grade,fourth grade,andfifth grade run an average of12,15,and10minutes per day,respectively.There are twice as many third graders as fourth graders,and twice as many fourth graders asfifth graders.What is the average number of minutes run per...
Let ABCDE be a pentagon inscribed in a circle such that AB=CD=3, BC=DE=10 and AE= The sum of the lengths of all diagonals of ABCDE is equal to mn, where m and n are relatively prime positive integers. What is m n?( ) A. 129 B. 247 C. 353 D. 391 E. 421 相关知识点:...
Step by step video, text & image solution for ABCDE is a pentagon. If the sum of the vectors bar(AB),bar(AE), bar(BC), bar(DC), bar(ED), bar(AC) is lambda bar(AC) then find the value of lambda. by Maths experts to help you in doubts & scoring excellent marks in Class 11...
In the pentagon ABCDE, angle A= 110^(@), angle B= 140^(@) and angle D= angle E. The sides AB and DC, when produced, meet at right angle. Calculate angles BCD