Question

this is very important plz answer fast​

Answer 1

Answer:

i- Obtuse angl

II- Acute angle

III- Acute angle

Step-by-step explanation:

Here, we have to find types of angles by adding the value given in the question and 1 more thing is given straight angle which is 180 degree

Here, 3 angles are given-

(5x+4),(x-2),(3x+7)

Here, sum is given. So, equation will be-

(5x+4)+(x-2)+(3x+7)

and straight angle is given

value of straight angle is 180 degree

Now, the equation will be-

(5x+4)+(x-2)+(3x+7)=180 degree

Now, we can solve this and can find types of 3 angles.

(5x+4)+(x-2)+(3x+7)=180 degree

= 5x+4+x-2+3x+7=180 degree

= 5x+x+3x+4-2+7=180 degree

= 6x+3x+2+7=180 degree

= 9x+9=180 degree

= 9x=180 degree-9 (plus sign will change into minus)

= 9x=171 degree

= x=171/9 degree

=

= x=19 degree

Now, we can find measure of the angles

1st angle- 5x+4= 5×19 degree+4

5x+4= 99 degree (obtuse angle)

2nd angle- x-2= 19 degree-2

x-2= 15 degree (acute angle)

3rd angle- 3x+7=3×19 degree+7

3x+7=57+7 degree

3x+7=64 degree (acute angle)

Answer 2

Answer:

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