4(x+2)=36 please help
1 answer:
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Answer:
x=18
Step-by-step explanation:
Vertical angles are congruent. This means that they are equal to each other. So, to solve set them equal to each other and isolate x. First, set up the equation. Then, subtract x from both sides. Finally, add 11 to both sides and simplify.
1)
2)
3)
For the given right triangle, the perimeter is 60cm, so the correct option is D.
<h3></h3><h3>How to get the perimeter of the triangle?</h3>We can see a right triangle, by using the Pythagorean theorem we can get the missing cathetus:
Now we know the measure of the 3 sides, then the perimeter of the given triangle is:
P = 15cm + 20cm + 25cm = 60cm
The perimeter of the triangle is 60cm.
If you want to learn more about right triangles:
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