I need major assistance for number 12,13

Mathematics

1 answer:

navik [9.2K]3 years ago

7 0

12: Right Angle.

There is a box where K and M is located

13: This one is very confusing. But I would say the answer is either acute or right.

The triangle makes the square acute. But there is a square located.

Hope this helps.

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Answer:

x=12

Step-by-step explanation:

We know that a right angle is 90 degrees. So we can make the equation $35+4x+7=90.$ Now, we can solve fore X! We can combine 35 and 7 to make the equation $4x+42=90$ . In order to isolate x we have to subtract 42 from both sides, getting us the equation $4x=48.$ Now, in order to isolate x we must divide each side by 4, getting us the equation $12=x$ . To prove that x=12, we can subsitute x for 12. This means that we can do $35+4(12)+7=90. Or, 35+48+7 =90,$ which simplified, is 90=90, making x=12 true. Hope this helps :)