Question

Find the area of ∆ ABC if AB =5 cm , AC =13cm and <B =90°​

Answer 1

Answer:

12$cm^{2}$

Step-by-step explanation:

Triangle is a right angle triangle, so we can apply Pythagoras' theorem:

a² + b² = c²

5² + BC² = 13²

BC² = 13² - 5²

BC² = 144

BC = √144

BC = 12