Question

Question no 6 and 7
Urgent answer please

Answer 1

Step-by-step explanation:

6)

Sol:

in a quadrilateral sum of square of sides =sum of square of diagonals

now,

AC^2+BD^2=AB^2+BC^2+CD^2+AD^2

AB is equal to all sides of the quadrilateral because the quadrilateral has equal sides

So, BC,CD,AD can write as AB

then,

AC^2+BD^2=AB^2+AB^2+AB^2+AB^2

AC^2+BD^2=4(AB)^2

AC^2+BD^2=4(60)^2

=4×3600

AC^2+BD^2=14400

AC Can write as BD because the diagonals lengths are equal

now,.

BD^2+BD^2=14400

2(BD)^2=14400

(BD)^2=14400/2

BD^2=7200

BD=√7200

BD=60√2

lengths of the diagonals are equal

Now, BD=AC. (Length of the diagonals are equal)

BD=60√2 cm

AC=60√2 cm

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