Calculate 2575

Calculate the area and height of the rhombic cover plate to which the following applies:

d (BC) = 60 cm, angle BAD = 45 °, angle ADB = 90 °.

Correct answer:

S =  1800 cm2

Step-by-step explanation:

BC=60 cm α=45° rad=45° 180π =45° 1803.1415926 =0.7854=π/4 S=BC2 cosα sinα=602 cos0.7854 sin0.7854=1800 cm2



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