Question

21. The height of a book shelf is 70 cm it is placed on top of a cupboard of height 1 m 2
cm. What is the combined height of the cupboard and the book shelf?​

Answer 1

Answer:

1m and 72 cm

Step-by-step explanation:

the height of the bookshelf is 70 cm

by placing it on the cupboard we are adding book shelf to the height of cupboard which is 1m and 2cm...which means the total is -

1m =100cm

100+2+70 = 172 cm

Answer 2

Answer:

1 m 72 cm

Step-by-step explanation:

height of book shelf= 70 cm

height of cupboard= 1 m 2 cm

combined height= add both

$70 cm+ 2 cm= 72 cm\\1m + 72 cm = 1 m 72 cm$