Question

the base of a right pyramid is a square of side 12 m long .if its height be 800cm then the area of the lateral surfacr is?in meter​

Answer 1

Answer:

here' your answer

Step-by-step explanation:

side 12 m

perimeter of base

4×12=48 m

here height is 800 cm this equal to

8 metres

base = 6m

slant height of pyramid

l=√h2+b2

l=√64+36=√100=10 m

lateral surface area of pyramid

1/2×perimetre of base×slant height

1/2×48×10=240 square metres