sin A = CH/AC
AC = √CH²+(AB/2)² = √7²+24² = √49+576 = √625 = 25
Sin A = 7/25 = 0,28
sinA=CH/AC AC=√CH²+(AB/2)²=√75²+24²=√49+576=√675=25
Отсюда sinA=7/25=0.28
sin A = CH/AC
AC = √CH²+(AB/2)² = √7²+24² = √49+576 = √625 = 25
Sin A = 7/25 = 0,28
sinA=CH/AC AC=√CH²+(AB/2)²=√75²+24²=√49+576=√675=25
Отсюда sinA=7/25=0.28