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3 years ago

I need the answers to these or for someone to tell me how to figure it out

Mathematics

2 answers:

Lorico [155]3 years ago

4 0

Answer:

4. Scalene

5. Isosceles

6. Isosceles

7. Equilateral

8. Right

9. Scalene

natta225 [31]3 years ago

3 0

Answer (assuming the numbers are the side lengths...)

4. Right Scalene 5. Obtuse Isosceles 6. Acute Isosceles 7. Equilateral 8. Right Scalene 9. Acute Scalene

Step-by-step explanation:

It is a lot of explaining, so if you want to cheat then go to triangle-calculator.com and then type in a = (side 1) b = (side 2) c = (side 3) and it will do the work for you :)

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What is m∠2?<br> What is m∠1?

Greeley [361]

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Step-by-step explanation:

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Given: △ACM, m∠C=90°, CP ⊥ AM

larisa86 [58]

Answer: The answer is $3\dfrac{4}{7}.$

Step-by-step explanation: Given in the question that ΔAM is a right-angled triangle, where ∠C = 90°, CP ⊥ AM, AC : CM = 3 : 4 and MP - AP = 1. We are to find AM.

Let, AC = 3x and CM = 4x.

In the right-angled triangle ACM, we have

$AM^2=AC^2+CM^2=(3x)^2+(4x)^2=9x^2+16x^2=25x^2\\\\\Rightarrow AM=5x.$

Now,

$AM=AP+PM=AP+(AP+1)\\\\\Rightarrow 2AP=AM-1\\\\\Rightarrow 2AP=5x-1.~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~(A)$

Now, since CP ⊥ AM, so ΔACP and ΔMCP are both right-angled triangles.

So,

$CP^2=AC^2-AP^2=CM^2-MP^2\\\\\Rightarrow (3x)^2-AP^2=(4x)^2-(AP+1)^2\\\\\Rightarrow 9x^2-AP^2=16x^2-AP^2-2AP-1\\\\\Rightarrow 2AP=7x^2-1.~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~(B)$