Question

the are of rhombus is 120cm2 and one of the diagonal is 8cm .find the other diagonal.

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Answer 1

Answer:

30 cm

Step-by-step explanation:

=> p = 2 A/q

=> 2. 120/8

=> 30 cm

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Answer 2

Given:

• Diagonal of rhombus = 8cm
• Area = $120 {cm}^{2}$

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Need to find:

• The other diagonal =?

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Solution:

We know,

Area of rhombus = $\dfrac{1}{2} \times d1 \times d2$

Substituting the values we get,

$120 = \dfrac{1}{2} \times 8 \times d2$

$\implies 120 = 4 \times d2$

$\implies d2 = \dfrac{120}{4} cm$

$\red{\bold{\boxed{\implies d2= 30 cm}}}$

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Knowledge cell:

• Area of square = side × side

• Area of rectangle = length × breadth