#cari alas segitiga
a² = 25² - 7²
a² = 625 - 49
a² = 576
a = √576
a = 24
L abc = ½ × (24 - 4) × 7
= ½ × 20 × 7
= 70
Alas²= 25² - 7²
= 625-49
= 576
Alas = √576
=24
L= 1/2 x a x t
= 1/2 x 24 x 7
= 12 x 7
= 84
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#cari alas segitiga
a² = 25² - 7²
a² = 625 - 49
a² = 576
a = √576
a = 24
L abc = ½ × (24 - 4) × 7
= ½ × 20 × 7
= 70
Alas²= 25² - 7²
= 625-49
= 576
Alas = √576
=24
L= 1/2 x a x t
= 1/2 x 24 x 7
= 12 x 7
= 84