Answer:
14cm
Step-by-step explanation:
Martelene bought a small aquarium to celebrate her birthday.
The aquarium has a length of 18.5cm, width of 15cm and a volume of 3885 cubic centimeters.
From the question above we are required to calculate the depth of the water in the aquarium
Let A represent the depth of the water in the aquarium
Volume= length×width×height
3885= 18.5 × 15 × A
3885= 277.5A
Divide both sides by the coefficient of A which is 277.5
3885/277.5= 277.5A/277.5
A = 3885/277.5
A= 14cm
Hence the water is 14cm deep into the aquarium.
Triangle has 3 angles, A, B, C. The total interior angle of a triangle is 180.
180 = A + B + C
180 = 72 + B + 113
180 = B + 185
B = 180 - 185
B = -5
This only proves that the figure is not a triangle because angle B is negative.
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