Mathematics
Junior High

解き方を教えてくださいーー!

革 14 cm 障のキ作をうとすると
三平方の定理 むずかちい 優しい人助けて 高校受験

Answers

内接円の中心をIとすると、
S=△IBC+△ICA+△IAB
=1/2×辺BC×X+1/2×辺CA×X+1/2×辺AB×X
=1/2×X×(辺BC+辺CA+辺AB)

Post A Comment
Were you able to resolve your confusion?

Users viewing this question
are also looking at these questions 😉