Find the area $ A $ of a pyramid if side $a = 47$ and slant height $s = 43$.

$A = 6251$

STEP 1: find base area $ B $

To find base area $ B $ use formula:

$$ B = a^2 $$

After substituting $ a = 47 $ we have:

$$ B = 47^2 $$ $$ B = 2209 $$

STEP 2: find lateral surface $ L $

To find lateral surface $ L $ use formula:

$$ L = 2 \cdot a \cdot s $$

After substituting $ a = 47 $ and $ s = 43 $ we have:

$$ L = 94 \cdot 43 $$$$ L = 4042 $$

STEP 3: find total surface $ A $

To find total surface $ A $ use formula:

$$ A = B + L $$

After substituting $ B = 2209 $ and $ L = 4042 $ we have:

$$ A = 2209 + 4042 $$ $$ A = 2209 + 4042 $$ $$ A = 6251 $$

Pyramid Calculator