81 feet
9 x 11 = 99
180 - 99 = 81
63 can be written as 60+3
The answer is 4
So the ratio would be 12/4
Then u simplify into 4/1 ( I divided each number by 4)
The two triangles are congruent it two sides and the included angle of one triangle are respectively equal to two sides and angle of the other triangle
Step-by-step explanation:
1 face area = length x width (aka length x length since cube)
therefore 1 side = ±√144 cm = 12 cm or - 12cm (rej as length > 0cm)
volume = length x width x height = 12 x 12 x 12 = 1728cm^3
Topic: Mensuration
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