Question

a triangle abc have a line ad perpendicular on bc if ad is 6cm and bc is 2 cm then find area of abc​

Answer 1

Answer:

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ΔABC is right angled at A. AD is perpendicular to BC. If AB=5cm, BC=13cm and AC=12cm, find the area of ΔABC. Also, find the length of AD.

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Solution

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

Area of triangle=

2

1

×base×height=

2

1

×AB×AC

=

2

1

×5×12=30cm

2

Now, in ΔABC,

Area of triangle ABC=

2

1

×BC×AD

⇒30=

2

1

×13×AD

⇒ AD=

13

30×2

=

13

60

cm.

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Answer 2

Answer:

the area of ABC is 8cm I hope it will need you