To find the surface area of the cube using the formula, you would substitute in 2 1/2 for the length of the side.

SA = 6 x 2.5 x 2.5
SA = 37.5 ft.²

You are finding the area of one face (2.5 x 2.5) and multiplying it by six because there are six groups of this.

4 0

3 years ago

a square with an area of 144 cm² is reduced by a factor of 1/3 how long are the new sides of the square?

olga55 [171]

Answer:

4 cm

Step-by-step explanation:

The square root of 144 is 12 (12 x 12 = 144) so we know our sides of the square are 12 cm²

12 / 3 = 4

( $\frac{12}{1} x \frac{1}{3}$ )

The sides of the new square are 4 :)

Hope this helps and is correct, have a nice day! :D

3 0

3 years ago

Max got 6 problems wrong on a 50 question test. What percent of the questions did<br> he miss?

evablogger [386]

Answer:

8.33333333333%

Step-by-step explanation:

50/6

6 0

3 years ago

Read 2 more answers

a right triangle has legs measuring 18 cm and 26 cm. What is the length of the hypotenuse? (a) 18.8 (b) 31.6 (b) 44.0 (d) 100.0

yuradex [85]

18^2+26^2= 1000

\sqrt(1000) 31.6

B 31.6

8 0

3 years ago