The answer for A would be 18 + -17. I'm not sure about B, you may need another Brainly user's help.
Hope this helps in any way possible!
- Juju :)
Answer: B) BC=4 in.
Step-by-step explanation:
Given: In △ABC , AB=4 inch ,AC=4 in. , and m∠A=60°
⇒ AB=AC= 4 inches
⇒ △ABC is an isosceles triangle.
⇒ m∠A=60°=m∠B [angles opposite to the equal sides of a triangle are equal]
Now by angle sum property,
m∠A+m∠B+m∠C=180°
⇒60°+60°+m∠C=180°
⇒ m∠C=180°-120°
⇒ m∠C=60°
⇒ △ABC is an equilateral triangle.
⇒ BC= 4 inches [sides of an equilateral triangles are equal]
⇒ B is the right answer.
Answer:A
Step-by-step explanation:
Answer:
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Answer:
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The answer is C.
Explanation: There are 3 x variables and on the other side you see 11.
So the answer is 3x = 11
