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= = 24 cm
Luas sisi tegak = 1/2 .a .t
= 1/2.20.24
= 240 cm²
L.Limas = 400 cm² + (4 x 240 cm²)
= 1360 cm²
dari segitiga TUQ
TU^ = TQ²-UQ²
TU^ = 26² - 10^
TU^ =676-100
TU^ =576
TU= √576
TU =
(akarnya cari sendiriya !)
#TU = tinggi Δ
luas= s² + 4. 1/2 .a. tΔ