# The right angle triangles abc, 8cm,15cm and 17cm are the lengnghts of ab,bc and ca respectively .then ,find out sina, cosa and tan a .

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sin a= 15/17 as sin a=perpendicular/hypotaneous

cos a= 8/17 as cos a= base/ hypotaneous

tan a= 15/8 as tan a= perpedicular / base