Tentukan panjang ED!

Teorema pythagoras

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•Cari Nilai BE dahulu

BE² = 10² – 8²

BE² = 100 – 64

BE = √36

BE = 6cm

•Cari nilai BD

BD² = 13² – 5²

BD = √169 – 25

BD = √144

BD = 12cm

Maka, panjang ED adalah:

BC – BE = ED

13 – 6 = ED

7cm = ED