Answer:
d^2=5d
d= √5d
Hope this helps you mate ~♥~♪＼(*＾▽＾*)／＼(*＾▽＾*)／♪＼(*＾▽＾*)／＼(*＾▽＾*)／♪＼(*＾▽＾*)／＼(*＾▽＾*)／
