Answer:
B
Step-by-step explanation:
Answer:
add them all up together and then divide by the number of items
Step-by-step explanation:
Congruent triangles have the exact same three sides and the exact same angles. They are identical. So if you look at your triangles carefully, they are congruent. :)
Answer:
20
Step-by-step explanation:
In area you have to multiply so 10 x ? = 200
10 x 20 = 200
X^4 - 5x^2 - 36 = 0
(x^2 - 9)(x^2 + 4) = 0
(x-3)(x+3)(x-2)(x+2) = 0
x = -3, -2, 2, 3
