Question

Area of a rhombus is 90cm². One of its diagonal measures 10 cm. Find the length of the other diagonal

Answer 1

we know that the area of rohombus is 1/2(d1+d2)
so
90=1/2(10+x)
90×2=10+x
180=10x
x=180/10
x=18
hope it helps and McMahon service brainliest

Answer 2

area of rhombus= 90 cm square

one diagonal =10cm2

let the length of other diagonal be d

1/2×10×d=90

5×d=90

d=90/5

d =18

so the diagonal is 18 cm