Triangle 45671

Draw a right triangle with side a = 5 cm, c = 8 cm. The right angle is at vertex C. What is the size of side b? *

Correct answer:

b =  6.245 cm

Step-by-step explanation:

a=5 cm c=8 cm C=90    AB = c = 8 cm  S; S  AB, AS=BS  k ; k(S, r1=c/2=4 cm)  l; l(A, r2=a=5 cm)  C; C = k  l  ABC  c2 = a2 +b2 b=c2a2=8252=39=6.245 cm

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