Free help with homework

Why join Brainly?

  • ask questions about your assignment
  • get answers with explanations
  • find similar questions

1.ABCD is a rhombus AO = 4cm and DO = 3cm find the perimeter of the rhombus?

2.ABCD is a trapezium in which AB parallel to DC and angle A = angle B =45degree find angle C and D


1~ as we know diagonals of rhombus bisect each other at 90° therefore in triangle AOD by PYTHAGORAS theorem AD*2=DO*2+AO*2 is AD*2=3*2+4*2 AD=√9+16 AD=√25=5 perimeter of rhombus =4×side =4×5=20cm
0 0 0
The Brain
  • The Brain
  • Helper
Not sure about the answer?
Learn more with Brainly!
Having trouble with your homework?
Get free help!
  • 80% of questions are answered in under 10 minutes
  • Answers come with explanations, so that you can learn
  • Answer quality is ensured by our experts