Question

Find the area of the rhombus to the nearest tenth.


https://nnds-li.brainhoney.com/Resource/19791663,8AD/Assets/assessmentimages/geo%20part%202%20u2l9%208.jpg
624.7 square units
446.0 square units
441.3 square units
701.4 square units

Answer 1

@Michele_Laino

Answer 2

the half diagonal is:
\[\sqrt {{{29}^2} - {8^2}} = \sqrt {841 - 64} = ...?\]

Answer 3

29.8

Answer 4

I got 27.87

Answer 5

ok so then do u do 27.8 x 8

Answer 6

no we have to compute this:
\[\Large area = \frac{{\left( {2 \times 27.87} \right) \times \left( {2 \times 8} \right)}}{2}\]

Answer 7

so, what is:
\[\Large \frac{{\left( {2 \times 27.87} \right) \times \left( {2 \times 8} \right)}}{2} = ...?\]

Answer 8

444.8

Answer 9

so, what is the right option?

Answer 10

im not sure none of them

Answer 11

I got this:
445.92

Answer 12

\[area = \frac{{\left( {2 \times 27.87} \right) \times \left( {2 \times 8} \right)}}{2} = 445.92\]

Answer 13

yeah i plugged in 28 instead of 27