HDB merupakan segitiga
= ½ x a x t
= ½ x BD x DH
= ½ x 12√2 x 12
= 72√2 cm²
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HDB merupakan segitiga
= ½ x a x t
= ½ x BD x DH
= ½ x 12√2 x 12
= 72√2 cm²