-8+3+-8--3
minusing a negativ means adding a positive
adding a negaative means minusing a positive
-8+3-8+3
-5-8+3
-13+3
-10
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<span>30+35 = 65
180 - 65 = 115 degrees</span>A triangle has angle measurements of 30 and 35. What is the measure of the third angle?180 degreesWhat do the angles of a triangle add up to?s=4How many sides are there in a shape whose interior angles have a sum of 720 degrees?<span>40 + 50 = 90
180 - 90 = 90 degrees</span>A triangle has angle measurements of 40 and 50. What is the measure of the third angle?<span>45 + 45 = 90
180 - 90 = 90 degrees</span>A triangle has two angles that measure 45 degrees. What is the measure of the third angle?<span>90 + 63 - 153
180 - 153 = 27 degrees</span>A right triangle has one angle that measures 63 degrees. What is the measure of the third angle?105 degreesIf the measure of angle 1 is 150, and the measure of angle 4 is 45, what is the measure of angle 3?75 degreesIf the measure of angle 3 is 145, and the measure of angle 2 is 70 what is the measure of angle 1?42 degreesIf a triangle has a right angle and an angle that measures 48 degrees, what is the measurement of the third interior angle?60 degreesIf a triangle has 3 equal interior angles, what is the measurement of 1 of the angles?TriangleHas 3 angles, 3 sides and is a closed 2-D figure14If a Triangle has angles that measure (3x+2) (8x+4) (x+6) , what is the value of x?1080 degreesWhat is the sum of the interior angles of a dodecagon (12 sides)?162 degreesWhat is the measure of one angle in a regular icosagon (20 sides)?360 degreesWhat is the sum of the exterior angles of an octagon?40 degreesWhat is the measure of one exterior angle of a regular nonagon?20, 60, 100The measures of the angles of a triangle are in the ratio 1:3:5. What is the measure of each angle?36, 54, 90The measures of the angles of a triangle are in the ratio 2:3:5. What is the measure of each angle?45, 60, 75The measures of the angles of a triangle are in the ratio 3:4:5. What is the measure of each angle?
Answer:
The answer is A
Step-by-step explanation:
The reason A is correct is because all of the other transformations change the size of the triangle, and A is the only answer that only reflects the image over the y axis without changing it, thus making it similar to the preimage
In triangle, ABD,
AD²= AB²+BD²
AB² = AD²-BD²
AB² = 18²-9² = 324-81 = 243
AB = √243
In triangle, ABC,
AC² = AB²+BC²
AC² = (√243)²+(13)²
AC² = 243+169
AC = √412
AC = 20.29
