Question

In a right rectangular pyramid with base edges a=18 cm and b=10 cm the slant height towards a is k=13 cm while the slant height towards b is l=15 cm. Find The surface area of the pyramid

Answer 1

564 cm^2

That's the correct answer lol

Answer 2

The surface area of the pyramid is
`SA=564\ cm^(2)`

Explanation:

we know that

The surface area of the rectangular pyramid is equal to the area of the rectangular base plus the area of its four triangular faces

so

`SA=(18)(10)+2[(1)/(2)(18)(13)]+2[(1)/(2)(10)(15)]\\ \\SA=180+ 234+150\\ \\SA=564\ cm^(2)`