Friday

March 6, 2015

March 6, 2015

Posted by **ganga** on Tuesday, February 5, 2013 at 5:45am.

- maths -
**Reiny**, Tuesday, February 5, 2013 at 8:55amDid you make your sketch?

let angle A be 2x

let angle D be 2y

because of the parallel lines,

2x + 2y = 190

x + y = 90

after bisection of angle A and D

look at triangle AOD

we have x + y + angle AOD = 180

90 + angle AOD = 180

angle AOD = 90°

**Answer this Question**

**Related Questions**

Math - Let AB and CD be two lines intersecting at point O. Let OP be the ...

Math - Let AB and CD be two lines intersecting at point O. Let OP be the ...

Geometry - Can some one please check these for me.Thanks Angle DEF is similar to...

Geometry - Given: ABCD is a parallelogram; <1 is congruent to <2 To Prove...

MATHS - ABCD is a cyclic quadrilateral in which angle BAD=70,angle ADC=80 and ...

Geometry - ray OB is the bisector of angle AOC and ray OC is the bisector of ...

Geometry - I really need some help please!!!!! Am I on the right tract? Given: ...

Geometry - If angle AOB = 28, Angle BOC = 3X-2, and Angle AOD = 6x... and if ...

geometry - In parallelogram ABCD, BC = 8, DC = 12, and measure of angle D is 50 ...

Geometry - I have four questions: 1. The area of trapezoid ABCD is 60. One base ...