Question

Work out the lengths of sides a and b. Give your answers to 1 decimal place. 8 cm 5 cm

Answer 1

Answer:

Step-by-step explanation:

a = $\sqrt{8^{2} + 5^{2}}$ = $\sqrt{64+25}$ = $\sqrt{99}$ = 9.9

b = $\sqrt{17^{2} - 12^{2}}$ = $\sqrt{289-144}$ = $\sqrt{145}$ = 12