AI Mentor

Check Your IQ

Free Expert Demo

Try Test

Courses

Offline Centres

The diagonals of a parallelogram ABCD intersect at O. If $∠ BOC = 90^{o}$ and $∠ BDC = 50^{o}$ , then $∠ AOB$ is

see full answer

High-Paying Jobs That Even AI Can’t Replace — Through JEE/NEET

🎯 Hear from the experts why preparing for JEE/NEET today sets you up for future-proof, high-income careers tomorrow.

An Intiative by Sri Chaitanya

10^{o}

40^{o}

50^{o}

90^{o}

answer is D.

(Unlock A.I Detailed Solution for FREE)

JEE

NEET

Foundation JEE

Foundation NEET

CBSE

Detailed Solution

Given,
ABCD is a parallelogram.

∠ BOC = 90^{o}

and

∠ BDC = 50^{o}

We know that,
Diagonals cut each other at a right angle.

\Rightarrow ∠ AOB = 180^{o} - ∠ BOC

\Rightarrow ∠ AOB = 90^{o}

Thus, the measure of

∠ AOB

90^{o}

.
Hence option 4 is correct.

Watch 3-min video & get full concept clarity

No courses found

Ready to Test Your Skills?

Check your Performance Today with our Free Mock Test used by Toppers!

Take Free Test