pleas no 25 help mee

BD= √13²- 5² = √169-25= √144= 12 cm

EC= √(13-5)² + (12:2)²
EC= √8²+6²
EC=√64+36
EC=√100
EC= 10 cm

AB = EA = 13 cm
AD = 5 cm
BD = √13²-5²
= √169-25
= √144
= 12 cm
BC = ½ x 12
= 6 cm
EC = √ED+BC
= √ 8² + 6²
= √ 64 + 36
= √ 100
= 10 cm