Question

the diagonals of a rhombus are 7.5cm and 12cm. find its area​

Answer 1

Answer:

Solution

A=pq

2=7.5·12

2=45cm²

Step-by-step explanation:

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Answer 2

Solution:

Let's construct a rhombus ABCD as shown in image

Let CB and AD be the diagonals of the rhombus ABCD.

AD = 7.5 cm, CB = 12 cm

Area of Rhombus ABCD = Area of ΔABC + Area of ΔDCB

= 1/2 × (CB × AO) + 1/2 × (CB × OD)

= 1/2 × CB × (AO + OD)

= 1/2 × CB × AD

= 1/2 × 12 m × 7.5 m

= 45 m²