5’3 is 63 inches since her brother is 1/3 larger so 63/3= 21 inches
(4 x 4) - (4/4)
= 16 - 1
= 15
S = 32 and t = 45
You replace the letters into numbers...
Since (st) is the same thing as (s × t), it would be 32 × 45, which equals to 1,440.
Then replace the r with 5, so now it's (6 × 5), instead of (6r).
st ÷ (6r) → 1,440 ÷ 30 = 48
Value of st ÷ (6r) = 48
Lateral sides consiste of 4 congruentisosceles triangle
lateral area
= 4 * 0.5 * 11.2 * 20
= 448 cm^2
42
(125/3 = 41.6..., 41.6... rounded is 42)
