prove that a rectangle is a parallelogram.
Asked by | 2nd Jul, 2009, 10:52: PM
let ABCD be a rectangle
to prove that it's a parallelogram, we must show that either one pair of opp sides is parallel and equal
both pairs of opp sides are parallel.
angle A=90 degrees
AB and CD are parallel(int angles on the same side of the transversal are supplementary)
AC and BD can be shown parallel.
So ABCD is a parallelogram.
the definition of a rectangle is that it's a parallelogram with one angle as a right angle.
Answered by | 2nd Jul, 2009, 11:13: PM
Kindly Sign up for a personalised experience
- Ask Study Doubts
- Sample Papers
- Past Year Papers
- Textbook Solutions
Verify mobile number
Enter the OTP sent to your number