A^2 + 16^2 = 20^2
(Third one)
ABCDE is a regular pentagon which consists of 5 equal triangles.
Area of the pentagon ABCDE:
A = 5 * 1.41 * 9.7 / 2 = 683.85 / 2 = 341.925 ≈ 341.9 cm²
Answer: The area of the pentagon ABCDE is 341.9 cm².
I agree with the other person that this is 25% error
14/3
or 4 and 2/3
idk what else to say so don’t mind this
Answer:
20 X 40 = 800 (split into 2 fourths) = 40
Step-by-step explanation
20 x 40 = 800;
For 2 necklaces she can split 800 into fourths.
800 - 40 = 80. (1 fourth)
80 - 40 = 40 (2 fourths)
40 - 40 = 0 (3 fourths)
She could split 800 into 2 fourths to get a number more than 0 and less then 42.
The best estimate of rounding 42 is 40. Because 40 is closer to 42.
