The area of quadrilateral is 200cm². The length of the diagonal is 20cm . The length of one perpendicular to its diagonal is 12 cm. Find the length of the other perpendicular to its diagonal
Answers
Answered by
7
Answer:
8cm
Step-by-step explanation:
assuming the quad is divided into two ∆s by the diagonal,
area of ∆1=1/2×b×h
=1/2×20×12
=120cm^2
area of ∆2= area of quad- area of ∆1
=200-120
=80cm^2
area of ∆2=1/2×b×h
80 =1/2×20×h
80/10 = h
8cm = h
hopefully this helps
feel free to correct me if I'm wrong:)
Similar questions