1, 2, 4, 8, 16 ...
a = 1
d = 8/4 = 2
Sn = n/2(2a + (n-1)d) = 30(2 + (29×2)) = 30(60) = 1800
Ans = $1,800 ...//
The longest side is 5/(5+3+4) = 5/12 of the perimeter, hence
(5/12)*156 cm = 65 cm . . . . . the length of the longest side
Answer:
N= -7
Step-by-step explanation:
N+16=9
subtract 16 from both sides
N= -7
(9 - 7 × 3 + 4)²
(9 - 21 + 4)²
(9 - 17)²
(-12)²
144
Answer:
120cm
Step-by-step explanation:
A triangle has a perimeter of 120 cm and two sides of 30 cm and 40 cm. Calculates the area. A right triangle has a cathetus of 10 cm and the hypotenuse 26 cm.
