Question

I need help to answer this

Answer 1

Answer:

$\\ \sf \: b = { \boxed{72}} \: centimeters$

Step-by-step explanation:

Let's assume base as b

Use Pythagoras theorem

Base² = Hypotenuse² - Height²

b² = (90² - 54²) cm

b = (√90²- 54²) cm

b = (√8100 - 2916) cm

b = (√5184) cm

b = 72 cm

Answer 2

Answer:

36 centimeters

Step-by-step explanation:

90-54