Question

3) Find the area of four wall of rectangular room of length 12m by 15m and height
21m​

Answer 1

Answer:

if it is right mark me as brainliest

Answer 2

$\huge{SOLUTION:}$

GIVEN:

LENGTH= 12 m

BREADTH= 15m

HEIGHT= 21m

Area of a walls = 2(lb+bh=hl)

$= 2(12 \times 15 + 15 \times 21 + 21 \times 12) \\ = 2(180 + 315 + 252) \\ = 2 \times 747 \\ = 1494m$

TOTAL AREA OF FOUR WALLS = 1494m