Traditional Culture Encyclopedia - Hotel reservation - The students of the model airplane group want to cut a trapezoid from the rectangular material AECFk, as shown in the shadow, to make the wing. Please calculate seven e and CD according to the data in
The students of the model airplane group want to cut a trapezoid from the rectangular material AECFk, as shown in the shadow, to make the wing. Please calculate seven e and CD according to the data in
The students of the model airplane group want to cut a trapezoid from the rectangular material AECFk, as shown in the shadow, to make the wing. Please calculate seven e and CD according to the data in figure K.
∫≈E port C = 18p- 1SP = 6p,
∴, port E= 1cc≈sc in RT delta port CE,
∵ In Rt△ADF ∠ mouth AF= big mouth,
∴AF=FD= 1,
∴CD=s8+sc- Da 1= 1p,
∴S trapezoidal port a CD =1s (1p+S8) × da1= 77 ta (cm) s.
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