Question

In the figure given below, B is a right angle. If DB = 6 cm, DC = 12 cm and AB = 14 cm, then find the length of AC.

• A. 6√19 cm
• B. 4√19 cm
• C. 7√19 cm
• D. 9√19 cm

Answer 1

Answer:

B. 4√19 cm

DB² + BC² = DC² 36 + BC² = 144 BC² = 108 AB² + BC² = AC² 196 + 108 = AC² AC = 4√19 cm