Question

1. Find the altitude of the rhombus whose area o
is 420 cm2 and perimeter is 140 cm.​

Answer 1

Answer:

12cm

Step-by-step explanation:

perimeter is 140

therefore each side= 140/4=35

area = 420

we know that diagonal bisect the rhombus

therefore area of one traingle = 210

area of triangle = 1/2×b×h

1/2×35×h= 210

h= 210×2/35

h=12cm