What is the surface area of a triangular pyramid which has 3 sides with a length of 7 cm each and a height of 10 cm
2 answers:
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Answer:
Step-by-step explanation:
Sine uses the ratio, so we can plug in the information we know. since there is no current value for the opposite side of angle A, we can just use a variable to replace it.
You can't reduce this any further because there is an unknown variable.