53-49=4
4 times 12=48. the unknown number is 48
Answer:
someone can help u
Step-by-step explanation:
stan kim namjoon for help
The surface area is 13630=1/2(4)(height)30=2(height)and from there we can solve. 30/2=15the height of the triangle is 15, which is also the slant heightto check our work, 1/2(4)(15)=304x15=601/2x60=30
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