L = 1/2 × a × t
43 = 1/2 × a × t
a = 43 × 1/2 × t
a = 21,5 cm × t
mencari tinggi
43 = 1/2 × 21,5 × t
t = 43 × 1/2 × 22
t = 43 × 11
t = 473 cm
22 = 1/2 × a × t
a = 1/2 × 22 × t
a = 11 cm
t = 22 × 1/2 × 11
t = 121 cm
L = 1/3 × (473 + 121)
L = 1/3 × 594
L = 198 cm
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mencari luas segitiga 1
L = 1/2 × a × t
43 = 1/2 × a × t
a = 43 × 1/2 × t
a = 21,5 cm × t
mencari tinggi
43 = 1/2 × 21,5 × t
t = 43 × 1/2 × 22
t = 43 × 11
t = 473 cm
mencari luas segitiga 2
L = 1/2 × a × t
22 = 1/2 × a × t
a = 1/2 × 22 × t
a = 11 cm
t = 22 × 1/2 × 11
t = 121 cm
mencari luas segitiga diarsir
L = 1/3 × (473 + 121)
L = 1/3 × 594
L = 198 cm