Question

Find the area of a rhombus whose side is 7.5 cm and whose altitude is 4 cm.
If one of its diagonals is 8 cm long, find the length of the other diagonal.
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Answer 1

Answer:

given that

Area of rohmbus=7.5cm

altitude=4cm.

diagonal=8cm.

we know that

Area of rohmbus =1/2×d1*d2

7.5=1/2×8×d2

7.5×2=8d2

15.0=8d2

15/8

Answer 2

Step-by-step explanation:

side of rhombus =7.5cm

its altitude=4cm

therefore its area will be the product of its altitude and base=7.5×4=30cm^2

it's one diagonal =8cm

therefore another formula to calculate its area =1/2d¹×d²

therefore its second diagonal will be=1/2×8×d²=30

therefore its second diagonal will be.of 7.5 centimetre