Question

In a parallelogram the diagonals insect at O.if OA=2x+15,OC=10x-9,then AC is

Answer 1

Answer:

42

Step-by-step explanation:

we know in a paralellogram diagonals bisect each other.

OA=OC

2x+15=10x-9

8x=24

x=3

...........

AC=OA+OC

=21+21

=42

(Alternatively->AC=2AO=2×21=42)

Answer 2

Answer:

please give exaplanation