Answer:
x = 12
Step-by-step explanation:
Given
3x + x = 2x + 24, that is
4x = 2x + 24 ( subtract 2x from both sides )
2x = 24 ( divide both sides by 2 )
x = 12
-3 because i dont really know
Answer:
<em>3. No.</em>
<em>4. No, not necessarily.</em>
<em>5. Yes.</em>
Step-by-step explanation:
3. No. With the two triangles, she knows that one angle of each is a right angle. She does not know anything about side lengths. She cannot prove the triangles are congruent.
4. We cannot prove the triangles are congruent. With the perpendicular segments, there is a pair of congruent, right angles. Then there are two pairs of sides that are congruent, but the order is SSA, and SSA does not prove triangles congruent.
5. Using the two sets of perpendicular lines, you have two congruent, right angles. Then you have the other pair of given congruent angles. Finally, segment RT is congruent to itself. This makes AAS. the triangles are congruent.
Answer:
what am I choosing the lines of symmetry on?
It’s a right angle. it follows the circle theorem ‘the angle in a semi-circle is 90 degrees’
