tolong dibantu. .............. dengan caranya

AB^2=40^2-24^2
=1600-576
=1024
AB=√1024
AB=32cm
BD^2=25^2-24^2
=625-576
=49
BD=√49
BD=7
AD=32-7=25cm

AC = 40
BC = 24
CD = 25

AB = √AC² - √BC²
= √40² - √24²
= √1600 - √ 576
= √1024
= 32

BD = √CD² - √BC²
= √25² - √24²
= √625 - √576
= √49
= 7

AD = AB - BD = 32 - 7 = 25

Jawaban b. 25 cm