Question

Mhn bntuaannnya ttg D3....

Answer 1

Verified answer

KUBUS dan LIMAS
r = 2 cm
FQ = FP = 1/2 × r = 1/2 × 2 = 1 cm
FR/ER = FQ/AE
FR/(FR + 2) = 1/2
2FR = FR + 2
2FR - FR = 2
FR = 2 cm
ER = EF + FR = 2 + 2 = 4 cm

V AEH.FQP = V AEH.R - V FQP.R
= (1/3×1/2×AE×EH×ER) - (1/3×1/2×FQ×FP×FR)
= (1/3×1/2×2×2×4) - (1/3×1/2×1×1×2)
= 16/6 - 2/6
= 14/6
= 2 2/6
= 2 1/3

jadi volume AEH.FQP adalah 2 1/3 cm^3 (D)