Kzymonviz
Answered

9. Ray's sheet of paper is 8 cm by 7 cm. He cuts out a square with sides of length
5 cm. What area of paper is remaining when he has cut out his square?
A. 55 sq.cm
B. 43 sq.cm
C. 36 sq. Cm
D. 31 sq.m​

Sagot :

Codenowviz

Answer:

D.

Step-by-step explanation:

We need to have the area of the paper(rectangle) first. (Formula is Length x Width)

8 x 7 = 56

Then we subtract it by the area of the square (Formula is S x S)

5 x 5 = 25

56 - 25 = 31

Aera7viz

Answer:

9. D. 31 sq.cm

Step-by-step explanation:

A=lw

A=8×7

A=56 cm²(paper)

A=s²

A=5²

A=25 cm² (square)

56cm²-25 cm²= 31 cm²(area of paper after he cut. out the square)