Question

ABC is right angled at vertex A. If AB = 4.5 cm, CA = 6 cm, find BC.​

Answer 1

Answer:

In right angles triangle BAC, AB=5cm and AC=12cm

Area of triangle= 1/2 × base × height =1/2 × AB × AC

= 1/2 × 5 × 12 = 30 cm.

Now in triangle ABC

Area of triangle ABC = 1/2 × BC×AD

30 = 1/2 ×13 ×AD

AD = 30×2 / 13 = 60 /13 cm.

Step-by-step explanation:

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