10 ABC is a triangle in which AB = AC = 4 cm and ZA = 90°. Calculate the area AABC.
Also find the length of perpendicular from A to BC.
Hint: By Pythagoras theorem, BC²= AB²+ AC² = 42 +42 = 32 = BC = 4√7 cm.
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Answer:
the area of the triangle is 8cm² and the length length of the perpendicular from A to BC is 2√2 cm....
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