Question

Find The size of angle XYZ Give your answer to 1 decimal place Angle XY 6cm Angle ZY 15cm

Answer 1

Answer: $3\sqrt{21}$

Step-by-step explanation:

$(xy)^{2}+(xz)^2=(yz)^2\\so, (6)^{2}+(xz)^2=15^2 \\(xz)^2=225-36\\xy=3\sqrt{21}$