Circumference 19603

The rhombus has the dimensions a = 9.1 cm; b = 8 cm; height to side a: va = 7.3 cm. Calculate the circumference, area, and size of the second height.

Correct answer:

o =  34.2 cm
S =  66.43 cm²
vb =  8.3038 cm

Step-by-step explanation:

$$\begin{gathered} a=9.1\text{cm} \\ b=8\text{cm} \\ va=7.3\text{cm} \\ o=2\cdot (a+b)=2\cdot (9.1+8)=34.2\text{cm} \end{gathered}$$

$S=a\cdot va=9.1\cdot 7.3=66.43{\text{cm}}^2$

$$\begin{gathered} S=a\cdot va=b\cdot vb \\ vb=S/b=66.43/8=8.3038\text{cm} \end{gathered}$$

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