can someone answer this please??? i rlly need this
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can someone answer this please??? i rlly need this
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Answer:
3. a. 80°
b. 70°
4. 70°
Step-by-step explanation:
3. isosceles triangle have congruent measures in its base angles so we get the equation 2b+a=180, with b equaling the base angles and a the top angle
4. since ab=ac, we can say that this is an isosceles triangle, applying the thought in number 3, we can say that 4x-45=2x+5 which gives us the value of x=25, substituting the value of x to the equations of the base angles, we get 55°, we double the value of 55 and subtract it from 180 and 180-110 is equal to 70°