1. In a AABC, it is given that Z A = 90°, AB = 4 cm and BC = 5 cm. The area of the triangle i
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Answer:
6 cm²
Step-by-step explanation:
In triangle ABC, angle A is 90⁰.
so AB and AC are base and perpendicular
According to pythagoras theorem
AB² + AC² = BC²
4² + AC² = 5²
16 + AC² = 25
AC² = 25 - 16
AC² = 9
AC² = 3²
AC = 3.
area of triangle ABC = 1/2 × BASE × HEIGHT
= 1/2 × AB × AC
= 1/2 × 4 × 3
= 2× 3
= 6 cm²
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