Two persons walk along roads making $135°$ at $7$ km/h and $5$ km/h for $4$ hours. The square of the direct distance (km

Question

Two persons walk along roads making $135°$ at $7$ km/h and $5$ km/h for $4$ hours. The square of the direct distance (km²) is approximately —

Accepted Answer

$1976$

Answer

$1184$

Answer

$2240$

Answer

$2456$

Two persons walk along roads making 135°135°135° at 777 km/h and 555 km/h for 444 hours. The square of the direct distance (km²) is approximately —