Question

tolong bantu pr saya dong pakai cara yaaa​

Answer 1

Verified answer

Jawaban:

panjang DE

[tex]\rm DE =\sqrt{ {CE}^{2} - {CD}^{2}}[/tex]

[tex]\rm DE =\sqrt{{15}^{2} - {9}^{2}}[/tex]

[tex]\rm DE = \sqrt{225 - 81}[/tex]

[tex]\rm DE = \sqrt{144}[/tex]

[tex]\rm DE = 12 \: cm[/tex]

[tex] \: [/tex]

Keliling bangun

= AB + BC + CD + DE + AE

= 15 cm + 10 cm + 9 cm + 12 cm + 10 cm

=[tex]\boxed{\boxed{\rm{ 56 \:cm}}}[/tex]

[tex] \: [/tex]

Jadi, keliling bangun di atas adalah 56 cm

[tex] \: [/tex]

[tex] \: [/tex]

[tex]\boxed {\color{blue}{\rm{By \: Answer\:AR.257.HERO}}}[/tex]