" Life is not a problem to be solved but a reality to be experienced! "
© Copyright 2013 - 2024 KUDO.TIPS - All rights reserved.
AB=√(10²+10²-2×10×10×cos 60)
AB=√(10²+10²-10²×2×1/2)
AB=√!0²
AB= 10cm
PQ=√(7²+7²-2×7²×cos45)
PQ=√(2×7²-2×7²×1/2√2)
PQ=√{7²(2-√2)}
PQ=7√(2-√2)