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dik. t = 27 cm
dik. sisi miring = 45 cm
dik. alas = ????
* alas = √ sm² - t²
= √ 45² - 27²
= √ 2.025 - 729
= √ 1.296
= 36 cm
maka, luas segitiga adalah :
1/2 x 36 x 27 = 486 cm²
semoga membantu.....
maaf kalo kurang ya.....