Posted by leena on Thursday, September 5, 2013 at 1:19pm.
in the diagram AB=20 cm, BC=21 cm, AD=10 cm and DE= 10.5 cm. Angles ABC and ADE are right angles. if triangleADE is removed from triangleABC.What is the area of shaded region that remains?

geometry  Graham, Friday, September 6, 2013 at 9:20am
Missing information: presumably A, D, B are colinear.
For right angle XYZ, ∆XYZ=(1/2)(XY×YX)
So:
∆ABC∆ADE = (1/2)(AB×BC)(1/2)(AD×DE)
Answer This Question
Related Questions
 Geometry..... reposted ques by me  in the diagram AB=20 cm, BC=21 cm, AD=10 cm ...
 math  _______7m______ \ /   \ 2.8m 2.8m /   \ /   n \ /   / \ n...
 Geometry  In the triangle, angles ABC and ADE are right angles. If AC = 35, AE...
 oops geometry  This conditional statement is true... If two angles are right ...
 math  A rectangle is removed from a right triangle to create the shaded region ...
 geometry  If Quadrilateral QRST is a parallelogram, which is not necessarily ...
 math  three right angles have vertices at the center of the circle .if the ...
 solid mensuration  if triangle ABC is equilateral,BD\BC=1\3 and AF\AB=1\3.what ...
 honors geometry  Find the area of the shaded region. diagram is a rectangle ...
 Math repost for Jose  Math  jose, Sunday, October 14, 2007 at 12:55pm <EAB ...
More Related Questions