Diagonals

Construct a rhombus whose diagonals have lengths of 10cm and 8cm and make an angle of 115°.

Correct answer:

a =  7.61 cm

Step-by-step explanation:

d1=10 cm d2=8 cm φ=115   1. AS;AS=d1/2 = 5  cm 2. p1; p1 = AS 3. C; AS=SC = 5 cm 4. p2; S  p2;  p1, p2 = φ = 115   5. k; k(S,r=d2/2 = 4 cm) 6. B,D; { B,D} = k  p2 7. ABCD  a=7.61=7.61 cm

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