The length of the base of an isosceles triangle is x. The length of a leg is 3x-4. The perimeter of the triangle is 34 . Find x

X=12

Step-by-step explanation:

2(3x-4) + x = 76

6x-8+x=76

7x-8=76

7x=84

x=12

3(12) - 4 =36-4 = 32

32 times 2 = 64 +12 =76

x = 6

Step-by-step explanation:

The base of this triangle is x.  The other two sides are equal and have length 3x - 4.  The perimeter of the triangle is thus x + 2(3x - 4) = 34, which can be solved for x.

Multiplying as indicated, we get x + 6x - 8 = 34, or 7x = 42.

Dividing both sides by 7, we get x = 6.

∠acb = 8°

step-by-step explanation:

∠xba lies on the circle and is half the measure of the intercepted arc ax

hence

measure of arc ax = 2 × 42° = 84°

∠acb is outside the circle and is

∠acb = (arcab - arcax ), hence

∠acb = 0.5 (100 - 84) = 0.5 × 16° = 8°

10000

step-by-step explanation: divide by 2,