nena752
Answered

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(a) In triangle ABC, the line BD is perpendicular to AC. AD= (x + 6) cm, DC = (x + 2) cm and the height BD=(x + 1) cm. The area of triangle ABC is 40 cm? i) Show that x2 + 5x - 36= 0. ii) Solve the equation x2 + 5x – 36 = 0. iii) Calculate the length of BC. ​

Sagot :

silirobert15
Answer:
i) x2 + 5x - 36 = 0
ii) x = 4 or x = -9
iii) BC = 7,81 cm or BC = 10,63 cm

Ok done. Thank to me :>
View image silirobert15
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